Re-Cabling Guidelines From Single Sas Adapter Pair To Dual Sas Adapter Pairs - IBM Elastic Storage System 5147-102 Service Manual

ess3200rw3a.gpfs.ess:
mmvdisk:
mmvdisk:
mmvdisk:
mmvdisk:
mmvdisk: Extending Allocation Map
mmvdisk: Checking Allocation Map for storage pool system
mmvdisk: Completed adding disks to file system ess3200rw3fs1.
Mon Aug 16 14:22:47 MST 2021
• Verify that the VDisk set is added to the file system.
# mmvdisk vs list --vs vs_fs3200_2
member vdisks
vdisk set
--------------
vs_fs3200_2
dataAndMetadata, system
recovery group
---------------
ess3200_78E400K
node class
------------------------------
ess3200_x86_64_mmvdisk_78E400K
(1077 MiB)
Mon Aug 16 14:24:01 MST 2021
The customer can use the new space by creating new vdisk sets from the available space. When
the vdisk sets are added to the existing file system (if needed), the restripe operation can be
run. For more information, see IBM Spectrum Scale: Administration Guide. When you are adding a
vdisk set to a file system, the default TRIM setting is "no" irrespective of the TRIM settings of the
existing vdisk sets. Issue the mmvdisk filesystem add command with the --trim {auto|no} option
to select TRIM settings when you are adding a vdisk set to a file system. For more information, see
Enable, disable, extend, and view TRIM settings on an existing declustered array and file system in
the Managing TRIM support for storage space reclamation chapter in IBM Spectrum Scale RAID:
Administration Guide.
Re-cabling guidelines from single SAS adapter pair to dual SAS adapter
pairs
This concurrent MES procedure explains how to convert cabling between 5141-FN2 and 5147-102
storage enclosures using single SAS adapter pair to dual SAS adapter pairs for up to four storage
enclosures.
The procedure assume the second SAS adapter pair needs to be added first, which is the Adapter MES by
itself, as part of this re-cabling procedure.
The following steps are the high-level flow of the procedure:
1. Perform adapter MES in Canister A/1 to add the second SAS adapter.
2. Restore the original network cabling to Canister A/1.
3. Restart GPFS and restore filesystem mounts in Canister A/1.
4. Run common system health check by using the SSR utility.
5. Perform adapter MES in Canister B/2 to add the second SAS adapter.
6. Restore the original network cabling to Canister B/2.
7. Restart GPFS and restore filesystem mounts in Canister B/2.
8. Alter cable connections in Canister A/1 to utilize both SAS adapters.
9. Alter cable connections in Canister B/2 to utilize both SAS adapters.
RG003LG001VS009: size 6299740 MB
RG003LG002VS009: size 6299740 MB
RG003LG003VS009: size 6299740 MB
RG003LG004VS009: size 6299740 MB
count size raw size
----- -------- --------
4 6152 GiB 7820 GiB
declustered
array type
----------- ----
DA1 NVMe
available
---------
120 GiB
;date
created file system and attributes
------- --------------------------
yes ess3200rw3fs1, DA1, 8+2p, 4 MiB,
capacity
total raw free raw free%
--------- -------- -----
76 TiB 15 TiB
vdisk set map memory per server
required required per vdisk set
-------- ----------------------
7080 MiB vs_fs3200_1 (1074 MiB), vs_fs3200_2
Chapter 1. Servicing (customer task) 41
all vdisk sets defined
in the declustered array
------------------------
20% vs_fs3200_1, vs_fs3200_2