IBM 3000 6.0.2, Руководство по обслуживанию

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Online adapter MES procedure
1. Prepare canister A (bottom canister slot) for an adapter MES. (Customer task)
a. Determine the node class of the ESS 3000 enclosure where you want to perform MES.
# mmvdisk nodeclass list
b. Display the state of the nodeclass associated with the ESS 3000.
# mmgetstate -N the ESS 3000 nodeclass
Example:
[root@ess3k5a ~]# mmvdisk nodeclass list
node class recovery groups
-------------------------- --------------------------
ece_nc_1 ece_rg_1
ess_x86_64_mmvdisk_78E016N ess3k_78E016N
ess_x86_64_mmvdisk_78E05N1 ess3k_78E05N1
gssio1_ibgssio2_ib rg_gssio1-ib, rg_gssio2-ib
[root@ess3k5a ~]# mmgetstate -N ess_x86_64_mmvdisk_78E05N1
Node number Node name GPFS state
-------------------------------------------
21 ess3k5a-ib active
22 ess3k5b-ib active
c. If canister A is currently designated as a quorum node, move the quorum to a different node.
i) To determine which nodes are quorum nodes, issue the following command:
# mmlscluster
ii) To evaluate quorum status, issue the following command:
# mmgetstate -s
iii) If necessary, to designate a different node to be a quorum node, issue the following command:
# mmchnode –quorum -N the node which is not in the enclosure’s nodeclass
iv) If necessary, to remove a quorum node from canister A, issue the following command:
# mmchnode –noquorum -N canister A
2. Unmount file systems that are mounted on canister A. (Customer task)
Unmount GPFS file systems from canister A.
# mmumount fs1 -N canister A
or you can unmount all file systems at a time from canister A:
# mmumount all -N canister A
Example:
[root@ess3k5a]# mmumount fs3k70 -N ess3k5a
3. Shut down GPFS only in canister A. (Customer task)
# mmshutdown -N canister A
Example:
[root@ess3k5a]# mmshutdown -N ess3k5a
Chapter 2. Servicing 39