Miscellaneous Equipment Specification (Mes) Instructions; Upgrading An Ibm Elastic Storage System 5147-102 Storage Enclosure From A Half-Populated To A Fully Populated Configuration - IBM Elastic Storage System 5147-102 Service Manual

Repeat the previous service procedure and swap out the mismatched PSU once the replacement PSU
is received.
Note: It is not recommended to use mismatched PSUs in a 5147-102 enclosure.

Miscellaneous equipment specification (MES) instructions

An IBM Elastic Storage System 5147-102 Storage Enclosure hardware change can be done by using the
MES instructions.
Upgrading an IBM Elastic Storage System 5147-102 Storage Enclosure from
a half-populated to a fully populated configuration
This non-concurrent MES procedure involves shifting down customer workload, adding 50 more HDDs
to an existing IBM Elastic Storage System 5147-102 Storage Enclosure to fill up all 102 drive slots with
HDDs, and returning the system to the customer for configuration of the new storage.
This procedure is only applicable to an IBM Elastic Storage System solution with a single half-populated
IBM Elastic Storage System 5147-102 Storage Enclosure.
MES upgrade steps
Refer to the following steps to upgrade an 5147-102 from a half-populated to a fully populated
configuration:
1. Customer task: Stop using the ESS 5147-102 enclosure.
2. Customer task: Unmount affected file systems that are mounted on the ESS 5147-102 enclosure and
shutdown GPFS.
mmshutdown -a
3. Identify the ESS 5147-102 storage enclosure to be upgraded.
a. Perform the following checks in the essutils menu and gather ESS 5147-102 serial number in
the SSR Checks for ESS 3500 nodes' section:
i) Quick storage configuration check
ii) Check enclosure cabling and paths to disks
b. SSR Checks for ESS 3500 nodes > 1. Quick storage configuration check.
/opt/ibm/ess/tools/bin/essstoragequickcheck -N localhost
[INFO]
[INFO]
[INFO]
[INFO]
[OK]
[INFO]
[OK]
[INFO]
[OK]
[OK]
[INFO]
[INFO]
[INFO]
[OK]
[INFO]
[INFO]
[OK]
Press Enter to continue...
SSR Checks for ESS 3500 nodes > 2. Check enclosure cabling and paths to disks
/opt/ibm/ess/tools/bin/essfindmissingdisks -N localhost
[INFO]
[INFO]
[INFO]
6 IBM Elastic Storage System 5147-10 Storage Enclosure: Service Guide
Start of storage quick configuration check
nodelist: localhost
Checking node: localhost
IO Server/Canister Type: ESS3500-5141-FN2, Serial: 78E400QB
Valid SAS Adapter Configuration. Number of Adapter(s) found: 1
Slots of SAS Adapter found 41:00.0,
Valid Network Adapter Configuration. Number of Adapter(s) found: 2
Slots of Network Adapter found 08:00.1, c1:00.0, c1:00.1, 08:00.0
NVMe Drv 15.36TB NVMe Tier-1 Flash found 24
Summary: total NVMe Drv found
Found only Rotating disks inside enclosure.
Enclosure 5147-102 found 1
Disk ST10000NM0578 E found 52
Total disk found 52, expected 52
Total ssd found 0, expected 0
End of storage quick configuration check
essstoragequickcheck passed successfully
Start find missing disk paths
nodelist: localhost
May take long time to complete search of all drive paths
24, expected NVMe Drv 24