You can install 512 GB, 1 TB, and 2 TB Flash
Cache 2 modules; 256 GB, 512 GB, and 1 TB Flash Cache modules,
and 16 GB performance acceleration modules (PAMs) in an existing storage
system as a first-time installation, as an addition to a storage system
that already has caching modules, as an upgrade from PAMs to Flash
Cache modules, or as replacements when a caching module is no longer
functioning.
Note: - Flash Cache modules (256-GB or 512-GB) were previously referred
to as PAM II modules.
- This appendix provides Flash Cache module and PAM information
for all N series systems. Some content in this appendix may not apply
to your N series system platform. Refer to the appropriate "Optional
adapter cards" appendix for your N series system for details about
caching module support.
After installing a new or replacement caching module, you should
run diagnostics. Depending on your platform model, you use the SYSDIAG
tool or system-level diagnostics to run diagnostics.
- You use the SYSDIAG tool to run diagnostics on platforms older
than N6200 series and N7x50T series.
Note: If you have a N7900 system,
the system must be running the SYSDIAG tool version 5.6 or higher:
- You can see what version of the SYSDIAG tool your system is running
by entering the version -b command at the storage
controller console.
- You can update the SYSDIAG tool version by going to the N series
support website to download the service image at www.ibm.com/storage/support/nseries/.
- You use system-level diagnostics to run diagnostics on N6200 series
and N7x50T series platforms.
For information about the PAM and Flash Cache module LEDs, see
the IBM® System Storage® N series Platform Monitoring
Guide or the flyer that shipped with your PAM or Flash Cache module.