IBM Elastic Storage System 3000 User Manual

mmvdisk: Completed adding disks to file system ess3k.
[ess3ka ~]#
d. Verify that the vdisk set is added to the le system.
[ess3ka ~]# mmvdisk vs list --vs vs_ess3k_1
member vdisks
vdisk set count size raw size created file system and attributes
-------------- ----- -------- -------- ------- --------------------------
vs_ess3k_1 4 6152 GiB 7820 GiB yes ess3k, DA1, 8+2p, 4 MiB, dataAndMetadata, system
declustered capacity all vdisk sets defined
recovery group array type total raw free raw free% in the declustered array
-------------- ----------- ---- --------- -------- ----- ------------------------
ess3k_mySN DA1 NVMe 76 TiB 15 TiB 20% vs_ess3k, vs_ess3k_1
vdisk set map memory per server
node class available required required per vdisk set
---------------------------- --------- -------- ----------------------
ess_x86_64_mmvdisk_5_mySN 102 GiB 7080 MiB vs_ess3k (1074 MiB), vs_ess3k_1 (1077 MiB)
[ess3ka ~]#
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 le system (if required), the restripe operation can be run. For
more information, see IBM Spectrum Scale: Administration Guide.
Example: Manually restarting GPFS on the ESS 3000 canisters
You can manually stop and start GPFS to solidify the nodes conguration changes on both canisters.
For conguration changes to take effect, restart GPFS on one canister at a time, and ensure that at least
one of the canisters is always in the active state. It is also important to understand the effect of losing
quorum on the canister during the GPFS recycling.
1. Check the quorum state by issuing the following command:
# mmgetstate -s
A sample output is as follows:
Node number Node name GPFS state
-------------------------------------------
21 ess3ka-ib active
Summary information
---------------------
Number of nodes defined in the cluster: 10
Number of local nodes active in the cluster: 10
Number of remote nodes joined in this cluster: 0
Number of quorum nodes defined in the cluster: 6
Number of quorum nodes active in the cluster: 6
Quorum = 4, Quorum achieved
2. Shut down GPFS on a canister by issuing the following command:
# mmshutdown -N canisterA
3. Start GPFS on a canister by issuing the following command:
# mmstartup -N canisterA
4. Check the state of GPFS on both canisters by issuing the following command:
# mmgetstate -N this ESS 3000 node class
A sample output is as follows:
Node number Node name GPFS state
-------------------------------------------
44
IBM Elastic Storage System 3000: Service Guide

IBM Elastic Storage System 3000 Specifications

General

Brand	IBM
Model	Elastic Storage System 3000
Category	Storage
Language	English