This document lists the configuration limits for all IBM Storage Virtualize Systems (IBM FlashSystem and SVC) using version 8.6.3.x
Refer to product documentation and
release notes for detailed information about product behaviour, restrictions and known issues.
Product Documentation Links
The tables in this page use a set of abbreviations for the various FlashSystem (FS) products, and SVC nodes. A full table of these abbreviations can be found at the end of this document.
To make the tables easier to read, you can use the product selector to filter which products are shown.
System (Cluster) Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
I/O groups / Control Enclosures per system (cluster) |
1 |
2 |
2 |
4 |
2 |
4 |
4 |
4 |
4 |
4 |
2 |
4 |
4 |
4 |
Active Nodes per system |
2 |
4 |
4 |
8 |
4 |
8 |
8 |
8 |
8 |
8 |
4 |
8 |
8 |
8 |
Spare Nodes per system |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
4 |
4 |
4 |
Nodes per fabric |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
Inter-cluster partnerships per system |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
IP Quorum devices per system |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
5 |
Data encryption keys per system |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
Key servers per system |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
Managed Disk and Pool Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Managed disks (MDisks) per system |
4096 |
4096 |
4096 |
4096 |
4096 |
4096 |
4096 |
4096 |
4096 |
4096 |
4096 |
4096 |
4096 |
4096 |
Managed disks per storage pool (managed disk group) |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
Storage pools per system |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
Parent pools per system |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
Child pools per system |
1023 |
1023 |
1023 |
1023 |
1023 |
1023 |
1023 |
1023 |
1023 |
1023 |
1023 |
1023 |
1023 |
1023 |
Managed disk extent size |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
8192 MB |
Storage pool extents per system |
4194304 (222) |
4194304 (222) |
1048576 (220) |
4194304 (222) |
4194304 (222) |
4194304 (222) |
4194304 (222) |
4194304 (222) |
4194304 (222) |
4194304 (222) |
4194304 (222) |
4194304 (222) |
4194304 (222) |
4194304 (222) |
Storage pool extents per vdisk |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
131072 (217) |
Storage pool extents per data repository vdisk |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
524288 (219) |
Data Reduction Pools per system |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
Mdisks per Data Reduction Pool |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
Volume copies per Data Reduction Pool |
4096 |
8192 |
8192 |
8192 |
8192 |
15864 |
32100 |
15864 |
15864 |
15864 |
65000 |
15864 |
15864 |
15864 |
Extents per I/O group per Data Reduction Pool |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
524,288 (512k) |
Support for Deduplication |
No |
Yes |
Yes |
Yes (see note) |
Yes (see note) |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Yes |
Capacity for an individual external managed disk |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
1 PB |
Total storage capacity manageable per system |
32 PB |
32 PB |
8 PB |
32 PB |
32 PB |
32 PB |
32 PB |
32 PB |
32 PB |
32 PB |
32 PB |
32 PB |
32 PB |
32 PB |
Notes:
- A minimum of 128 GB memory installed in each node canister is required to use deduplication on FlashSystem 5200 and FlashSystem 5300
Distributed RAID Array Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Arrays per system |
10 |
20 |
20 |
32 |
20 |
32 |
32 |
32 |
32 |
32 |
20 |
n/a |
n/a |
n/a |
Arrays per I/O group |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
n/a |
n/a |
n/a |
FCM arrays per storage pool |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
n/a |
n/a |
n/a |
Member drives per array |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
n/a |
n/a |
n/a |
Min / Max member drives per RAID-1 array |
2-16 |
2-16 |
2-16 |
2-16 |
2-16 |
2-16 |
2-16 |
n/a |
n/a |
2-16 |
2-16 |
n/a |
n/a |
n/a |
Min / Max member drives per RAID-5 array |
4-8 |
4-8 |
4-8 |
4-8 |
4-8 |
4-128 |
n/a |
4-128 |
4-128 |
4-128 |
n/a |
n/a |
n/a |
n/a |
Min / Max member drives per RAID-5 array (NVMe drives) |
n/a |
n/a |
n/a |
4-8 |
4-8 |
4-24 |
n/a |
4-24 |
4-24 |
4-24 |
n/a |
n/a |
n/a |
n/a |
Min / Max member drives per RAID-6 array |
6-128 |
6-128 |
6-128 |
6-128 |
6-128 |
6-128 |
6-128 |
6-128 |
6-128 |
6-128 |
6-128 |
n/a |
n/a |
n/a |
Min / Max member drives per RAID-6 array (NVMe drives) |
n/a |
n/a |
n/a |
6-24 |
6-24 |
6-24 |
6-24 |
6-24 |
6-24 |
6-24 |
6-48 |
n/a |
n/a |
n/a |
Rebuild areas per non-FCM array |
1-4 |
1-4 |
1-4 |
1-4 |
1-4 |
1-4 |
1-4 |
1-4 |
1-4 |
1-4 |
1-4 |
n/a |
n/a |
n/a |
Rebuild areas per FCM array |
n/a |
n/a |
n/a |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
n/a |
n/a |
n/a |
Min / Max stripe width for RAID-5 array |
3-7 |
3-7 |
3-7 |
3-7 |
3-7 |
3-16 |
n/a |
3-16 |
3-16 |
3-16 |
n/a |
n/a |
n/a |
n/a |
Min / Max stripe width for RAID-6 array |
5-16 |
5-16 |
5-16 |
5-16 |
5-16 |
5-16 |
5-16 |
5-16 |
5-16 |
5-16 |
5-16 |
n/a |
n/a |
n/a |
Max drive capacity for RAID-5 array |
8 TB |
8 TB |
8 TB |
8 TB |
8 TB |
8 TB |
n/a |
8 TB |
8 TB |
8 TB |
n/a |
n/a |
n/a |
n/a |
Max FCM drive capacity for RAID-1 array |
n/a |
n/a |
n/a |
19.2 TB |
19.2 TB |
19.2 TB |
19.2 TB |
n/a |
n/a |
19.2 TB |
19.2 TB |
n/a |
n/a |
n/a |
Max drives added to a RAID-1 array in a single DRAID expansion |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
n/a |
n/a |
12 |
12 |
n/a |
n/a |
n/a |
Max drives added to a RAID-5 or RAID-6 array in a single DRAID expansion |
42 |
42 |
42 |
42 |
42 |
42 |
42 |
42 |
42 |
42 |
42 |
n/a |
n/a |
n/a |
Concurrent DRAID expansions per system |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
n/a |
n/a |
n/a |
Concurrent DRAID expansions per parent storage pool |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
n/a |
n/a |
n/a |
Non-Distributed RAID Array Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Arrays per system |
n/a |
n/a |
n/a |
n/a |
n/a |
128 |
n/a |
128 |
128 |
128 |
n/a |
n/a |
n/a |
n/a |
Encrypted arrays per system |
n/a |
n/a |
n/a |
n/a |
n/a |
128 |
n/a |
128 |
128 |
128 |
n/a |
n/a |
n/a |
n/a |
Member drives per array |
n/a |
n/a |
n/a |
n/a |
n/a |
16 |
n/a |
16 |
16 |
16 |
n/a |
n/a |
n/a |
n/a |
Min / Max member drives per RAID-0 array |
n/a |
n/a |
n/a |
n/a |
n/a |
1-8 |
n/a |
1-8 |
1-8 |
1-8 |
n/a |
n/a |
n/a |
n/a |
Min / Max member drives per RAID-1 array |
n/a |
n/a |
n/a |
n/a |
n/a |
2 |
n/a |
2 |
2 |
2 |
n/a |
n/a |
n/a |
n/a |
Min / Max member drives per RAID-10 array |
n/a |
n/a |
n/a |
n/a |
n/a |
2-16 |
n/a |
2-16 |
2-16 |
2-16 |
n/a |
n/a |
n/a |
n/a |
Notes:
- No limit is imposed for the number of hot spare drives.
Volume (Virtual Disk) Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Basic volumes per system (see note) |
2048 |
8192 |
8192 |
8192 |
8192 |
15864 |
16050 |
15864 |
15864 |
15864 |
32500 |
15864 |
15864 |
15864 |
Support for VMware Virtual Volumes (vVols) |
no |
no |
no |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
yes |
Volume copies per system (see note) |
4096 |
8192 |
8192 |
8192 |
8192 |
15864 |
16050 |
15864 |
15864 |
15864 |
32500 |
15864 |
15864 |
15864 |
Stretched volumes per system |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
7932 |
7932 |
7932 |
Cloud volumes per system |
n/a |
n/a |
n/a |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
Volume copies per volume |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
Total mirrored volume capacity per I/O group |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
40 PB |
Volume groups per system |
0 |
0 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
Volumes per volume group |
n/a |
n/a |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
Fully-allocated volume capacity |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
Thin-provisioned (space-efficient) volume capacity |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
256 TB |
Host mappings per system |
20000 |
20000 |
20000 |
64000 |
64000 |
64000 |
64000 |
64000 |
64000 |
64000 |
64000 |
64000 |
64000 |
64000 |
Volume groups per storage partition |
n/a |
n/a |
n/a |
n/a |
n/a |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
Maximum Provisioning Policies |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
Notes:
- If a Remote Copy partnership exists to a system that supports a lower number of basic volumes, the maximum number of volumes is reduced to the lower limit, or 8192 if that is greater. For example, if one system has a limit of 15864 volumes and the other has a limit of 8192 volumes, both systems will be limited to 8192 volumes.
- For HyperSwap volumes per system see Replication Properties.
- A minimum of 64 GB memory installed in each node canister is required to use vVols
Host Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Hosts per system |
256 |
512 |
512 |
1024 |
1024 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
Hosts per I/O group |
256 |
256 |
256 |
256 |
512 |
512 |
2048 |
512 |
512 |
512 |
2048 |
512 |
512 |
2048 |
Volume mappings per host |
512 |
512 |
512 |
512 |
512 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
Host portsets per system (FC plus Ethernet) |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
72 |
IP addresses per system |
512 |
1024 |
1024 |
2048 |
1024 |
2048 |
2048 |
2048 |
2048 |
2048 |
1024 |
2048 |
2048 |
2048 |
IP addresses per port |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
IP addresses per node |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
Unique IP addresses per port |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
Routable IP Addresses per port |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Node IP Addresses per portset for Host Attach |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
FC ports per portset |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
Host clusters per system |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
Hosts in a host cluster |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
Host: SCSI over Fibre Channel Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Fibre Channel hosts per system |
256 |
512 |
512 |
1024 |
1024 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
Fibre Channel hosts per I/O group |
256 |
256 |
256 |
256 |
512 |
512 |
2048 |
512 |
512 |
512 |
2048 |
512 |
512 |
2048 |
Fibre Channel host ports per system |
2048 |
4096 |
4096 |
8192 |
4096 |
8192 |
8192 |
8192 |
8192 |
8192 |
4096 |
8192 |
8192 |
8192 |
Fibre Channel host ports per I/O group |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
NPIV Direct Attach Logins per Fibre Channel WWPN |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
Fibre Channel host ports per host (ID) |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
Fibre Channel logins per port Fibre Channel WWPN |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
Notes:
- Fibre Channel logins per port Fibre Channel WWPN includes logins from server HBAs, disk controller ports, node ports within the same system and node ports from remote systems.
Host: NVMe over Fabric General Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Total NVMe over Fabric hosts per system |
n/a |
n/a |
n/a |
512 |
512 |
1024 |
1024 |
1024 |
1024 |
1024 |
512 |
1024 |
1024 |
1024 |
Total NVMe over Fabric hosts per I/O group |
n/a |
n/a |
n/a |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
NVMe Qualified Names (NQNs) per host (ID) |
n/a |
n/a |
n/a |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
Notes:
- Total NVMe over Fabric hosts includes NVMe over Fibre Channel, NVMe over RDMA and NVMe over TCP hosts
Host: NVMe over Fibre Channel Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
NVMe over Fibre Channel hosts per system |
n/a |
n/a |
n/a |
n/a |
32 |
64 |
64 |
64 |
64 |
64 |
32 |
64 |
64 |
64 |
NVMe over Fibre Channel hosts per I/O group |
n/a |
n/a |
n/a |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
NVMe connections per FC port |
n/a |
n/a |
n/a |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
Host: NVMe over RDMA Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
NVMe over RDMA hosts per system |
n/a |
n/a |
n/a |
512 |
n/a |
1024 |
1024 |
1024 |
1024 |
1024 |
512 |
1024 |
1024 |
1024 |
NVMe over RDMA hosts per I/O group |
n/a |
n/a |
n/a |
256 |
n/a |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
Primary RDMA connections per port |
n/a |
n/a |
n/a |
256 |
n/a |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
Host queue size |
n/a |
n/a |
n/a |
64 |
n/a |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
Number of IO queues |
n/a |
n/a |
n/a |
8 |
n/a |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
Host: NVMe over TCP Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
NVMe over TCP hosts per system |
n/a |
n/a |
n/a |
1024 |
512 |
1024 |
1024 |
1024 |
1024 |
1024 |
512 |
1024 |
1024 |
1024 |
NVMe over TCP hosts per I/O group |
n/a |
n/a |
n/a |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
Host queue size |
n/a |
n/a |
n/a |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
128 |
Number of IO queues |
n/a |
n/a |
n/a |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
8 |
Host: iSCSI Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
iSCSI hosts per system |
256 |
512 |
512 |
1024 |
1024 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
2048 |
iSCSI hosts per I/O group |
256 |
256 |
256 |
256 |
512 |
512 |
1024 |
512 |
512 |
512 |
1024 |
512 |
512 |
1024 |
iSCSI names per host |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
iSCSI names per I/O group |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
Host: iSER Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
iSER hosts per system |
n/a |
n/a |
n/a |
1024 |
n/a |
2048 |
n/a |
2048 |
2048 |
2048 |
n/a |
2048 |
2048 |
n/a |
iSER hosts per I/O group |
n/a |
n/a |
n/a |
256 |
n/a |
512 |
n/a |
512 |
512 |
512 |
n/a |
512 |
512 |
n/a |
iSER names per host |
n/a |
n/a |
n/a |
4 |
n/a |
4 |
n/a |
4 |
4 |
4 |
n/a |
4 |
4 |
n/a |
Ethernet Session Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
iSCSI sessions per node used for Host Attach |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
iSER sessions per node used for Host Attach |
n/a |
n/a |
n/a |
256 |
n/a |
256 |
n/a |
256 |
256 |
256 |
n/a |
256 |
256 |
n/a |
iSCSI + iSER sessions per node used for Host Attach |
n/a |
n/a |
n/a |
1088 |
n/a |
1088 |
n/a |
1088 |
1088 |
1088 |
n/a |
1088 |
1088 |
n/a |
Host: SAS Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
SAS hosts per system |
4 |
8 |
8 |
16 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
SAS hosts per I/O group |
4 |
4 |
4 |
4 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
Replication: Policy-Based Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Total volume capacity per I/O group using policy-based replication (asynchronous replication or HA) |
n/a |
n/a |
n/a |
1 PiB |
1 PiB |
2 PiB |
2 PiB |
2 PiB |
2 PiB |
2 PiB |
4 PiB |
2 PiB |
2 PiB |
4 PiB |
Volumes using policy-based replication (asynchronous replication or HA) |
n/a |
n/a |
n/a |
7932 |
7932 |
7932 |
16050 |
7932 |
7932 |
7932 |
32500 |
7932 |
7932 |
7932 |
Maximum round-trip latency for asynchronous policy-based replication using Fibre Channel partnerships |
n/a |
n/a |
n/a |
250 ms |
250 ms |
250 ms |
250 ms |
250 ms |
250 ms |
250 ms |
250 ms |
250 ms |
250 ms |
250 ms |
Maximum round-trip latency for asynchronous policy-based replication using IP (long distances using TCP) partnerships |
n/a |
n/a |
n/a |
80 ms |
80 ms |
80 ms |
80 ms |
80 ms |
80 ms |
80 ms |
80 ms |
80 ms |
80 ms |
80 ms |
Maximum round-trip latency for asynchronous policy-based replication using IP (short distances using RDMA) partnerships |
n/a |
n/a |
n/a |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
Maximum round-trip latency for policy-based high availability |
n/a |
n/a |
n/a |
1 ms |
1 ms |
1 ms |
1 ms |
1 ms |
1 ms |
1 ms |
1 ms |
1 ms |
1 ms |
1 ms |
Replication policies per system |
n/a |
n/a |
n/a |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
I/O group connections per system using policy-based replication (see notes for example) |
n/a |
n/a |
n/a |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
Total number of I/O groups in remote systems that can be configured for policy-based replication for an I/O group |
n/a |
n/a |
n/a |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
Storage partitions per system |
n/a |
n/a |
n/a |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
Notes:
- I/O group connections per system using policy-based replication example: If I/O group 0 in system 1 is replicating to two I/O groups in system 2, this counts as two connections. If I/O group 1 in system 1 is also replicating to these same I/O groups, that counts as two additional connections, for a total of four connections.
- Contact IBM to review the supported limits when planning to use vVol replication.
- A minimum of 128 GB memory installed in each node canister is required to use policy-based replication on FlashSystem 5200 and FlashSystem 5300
Replication: Remote Copy Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Total Remote Copy capacity per IO group (includes Metro Mirror, Global Mirror, Volume Migration and HyperSwap) |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
1024 TB |
2048 TB |
2048 TB |
2048 TB |
2048 TB |
2048 TB |
2048 TB |
1024 TB |
2048 TB |
2048 TB |
Remote Copy Metro Mirror relationships per system |
2048 |
8192 |
8192 |
8192 |
8192 |
10000 |
10000 |
10000 |
10000 |
10000 |
10000 |
10000 |
10000 |
10000 |
Remote Copy Global Mirror relationships per system |
2048 |
8192 |
8192 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
Remote Copy Active-Active relationships (HyperSwap volumes) per system |
n/a |
1250 |
1250 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
2000 |
Remote Copy migration relationships per system |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
Max round-trip latency for Metro Mirror, HyperSwap and Migration relationships |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
3 ms |
Max round-trip latency for Global Mirror and Global Mirror cycling mode (aka GMCV) when using FC replication |
80 ms |
80 ms |
80 ms |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
Remote Copy relationships per consistency group, for Global Mirror cycling mode relationships (aka GMCV) |
256 |
256 |
256 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
Global Mirror cycling mode relationships (aka GMCV) per system, with cycle times less than 300 seconds |
256 |
256 |
256 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
Global Mirror cycling mode relationships (aka GMCV) per system, with cycle times of 300 seconds or more |
1024 |
2500 |
2500 |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
Remote Copy consistency groups per system |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
3-site Remote Copy relationships per consistency group |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
3-site Remote Copy consistency groups per system |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
3-site Metro Mirror Remote Copy relationships per system |
1024 |
1250 |
1250 |
2048 |
2048 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
3-site HyperSwap Remote Copy relationships per system |
n/a |
1250 |
1250 |
1250 |
1250 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
2500 |
IP (long distances using TCP) Partnership Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Inter-cluster IP (long distances using TCP) partnerships per system |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
Inter site links per IP (long distances using TCP) partnership |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
Ports per node per IP (long distances using TCP) partnership |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
IP (long distances using TCP) Partnership Software Compression Limit |
140 MB/s |
140 MB/s |
140 MB/s |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
n/a |
IP (short distances using RDMA) Partnership Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
IP (short distances using RDMA) partnerships per system |
n/a |
n/a |
n/a |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
High speed portsets per system |
n/a |
n/a |
n/a |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
High speed portsets per IP (short distances using RDMA) partnership |
n/a |
n/a |
n/a |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
IP addresses per node per high speed portset |
n/a |
n/a |
n/a |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
Snapshots and FlashCopy Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Snapshots Per System |
n/a |
n/a |
8191 |
15863 |
15863 |
15863 |
32099 |
15863 |
15863 |
15863 |
64999 |
15863 |
15863 |
15863 |
Thin-Clone, Clone Volumes Per System |
n/a |
n/a |
8190 |
8191 |
8191 |
15862 |
16049 |
15862 |
15862 |
15862 |
32499 |
15862 |
15862 |
15862 |
Total FlashCopy bitmap allowance per I/O group |
2 GiB |
2 GiB |
2 GiB |
2 GiB |
5 GiB |
2 GiB |
10 GiB |
2 GiB |
2 GiB |
2 GiB |
20 GiB |
2 GiB |
2 GiB |
20 GiB (shared with volume mirroring) |
Total FlashCopy bitmap allowance per I/O group which legacy FlashCopy can have up to |
2 GiB |
2 GiB |
2 GiB |
2 GiB |
2 GiB |
2 GiB |
2 GiB |
2 GiB |
2 GiB |
2 GiB |
4 GiB |
2 GiB |
2 GiB |
4 GiB |
Total FlashCopy volume capacity per I/O group |
4 PiB |
4 PiB |
4 PiB |
4 PiB |
10 PiB |
4 PiB |
20 PiB |
4 PiB |
4 PiB |
4 PiB |
40 PiB |
4 PiB |
4 PiB |
40 PiB (shared with volume mirroring) |
Total FlashCopy volume capacity per I/O group which legacy FlashCopy can have up to |
4 PiB |
4 PiB |
4 PiB |
4 PiB |
4 PiB |
4 PiB |
4 PiB |
4 PiB |
4 PiB |
4 PiB |
8 PiB |
4 PiB |
4 PiB |
8 PiB |
Safeguarded Policies per system |
n/a |
n/a |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
Snapshot Policies per system |
n/a |
n/a |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
40 |
FlashCopy mappings per system |
2048 |
8192 |
8192 |
8192 |
8192 |
15864 |
15864 |
15864 |
15864 |
15864 |
15864 |
15864 |
15864 |
15864 |
FlashCopy consistency groups per system |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
500 |
FlashCopy mappings per consistency group |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
512 |
FlashCopy targets per source |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
Notes:
- Total FlashCopy bitmap allowance and volume capacity includes legacy FlashCopy, snapshots, clone volumes and thin-clone volumes, where supported.
- IBM recommends that the sum of volume copies and snapshots in a system should not exceed 50,000 when using standard pools. Data reduction pools are recommended for larger configurations.
- IBM recommends that the number of volumes in a volume group should not exceed 128, especially if the sum of volume copies and snapshots in the system exceeds 32,100
External Storage System Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Storage system WWNNs per system (cluster) |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
Storage system WWPNs per system (cluster) |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
1024 |
WWNNs per storage system |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
WWPNs per WWNN |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
WWPNs per Mdisk (see comment below) |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
16 |
Notes:
- WWPNs per Mdisk means limit of Storage System WWPNs that can have LUN mappings for a specific Storage System LU
System and User Management Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
User accounts per system (Includes the default user accounts) |
200 |
200 |
200 |
400 |
400 |
400 |
400 |
400 |
400 |
400 |
400 |
400 |
400 |
400 |
User groups per system (Includes the default user groups) |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
256 |
Ownership groups per system |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
64 |
Remote authentication (LDAP) services per system |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Multifactor authentication services per system |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Single sign-on authentication services per system |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
DNS servers per system |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
2 |
NTP servers per system |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
iSNS servers per system |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
1 |
Concurrent open SSH sessions per system |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
Two Person Integrity Requests per system |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
Patches per node (Includes Installed, Obsolete and Error) |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
30 |
Event Notification Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
SNMP servers per system |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
Syslog servers per system |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
Email (SMTP) servers per system |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
Email users (recipients) per system |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
12 |
LDAP servers per system |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
6 |
REST API Limits
Limit |
FS5015 |
FS5035 |
FS5045 |
FS5200 |
FS5300 |
FS7200 |
FS7300 |
FS9110 |
FS9150 |
FS9200 |
FS9500 |
SVC SA2 |
SVC SV2 |
SVC SV3 |
Max active connections per cluster |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
4 |
Max requests/sec to auth endpoint |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
3 |
Max requests/sec to command endpoints |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
10 |
Product Lookup
Product |
Table Header |
IBM FlashSystem 5015 |
FS5015 |
IBM FlashSystem 5035 |
FS5035 |
IBM FlashSystem 5045 |
FS5045 |
IBM FlashSystem 5200 |
FS5200 |
IBM FlashSystem 5300 |
FS5300 |
IBM FlashSystem 7200 |
FS7200 |
IBM FlashSystem 7300 |
FS7300 |
IBM FlashSystem 9110 |
FS9110 |
IBM FlashSystem 9150 |
FS9150 |
IBM FlashSystem 9200 |
FS9200 |
IBM FlashSystem 9500 |
FS9500 |
IBM SAN Volume Controller - SA2 nodes |
SVC SA2 |
IBM SAN Volume Controller - SV2 nodes |
SVC SV2 |
IBM SAN Volume Controller - SV3 nodes |
SVC SV3 |
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