Updating available disks

[Jim Lahman_1]

Now that I have the shadow sets running on both nodes with the proper allocation class, how do I dynamically update the disks that are available on the cluster?

On node CGLHD1 (alloclass=10, "show dev d" gives me this result:

Device Device Error Volume Free Trans Mnt
Name Status Count Label Blocks Count Cnt
CGLHD2$DKB0: HostUnavailable 0
CGLHD2$DKB100: HostUnavailable 0
CGLHD2$DQA0: HostUnavailable 0
DSA0: Mounted 0 CGLHD1SYS 264365200 684 1
$1$DGA100: (CGLHD1) Mounted 0 HDGLDAT1 454009050 53 2
$1$DGA200: (CGLHD1) Mounted 0 PRDDSK 76460450 429 2
$1$DGA300: (CGLHD1) Mounted 0 HDGLODS5 454072173 673 2
$10$DKA0: (CGLHD1) ShadowSetMember 0 (member of DSA0:)
$10$DKA100: (CGLHD1) ShadowSetMember 0 (member of DSA0:)
$10$DQA0: (CGLHD1) Online 0
$10$DQA1: (CGLHD1) Offline 1
$10$DQB0: (CGLHD1) Offline 1
$10$DQB1: (CGLHD1) Offline 1

On CGLHD2 (alloclass=20), "show dev d" gives me this result:
Device Device Error Volume Free Trans Mnt
Name Status Count Label Blocks Count Cnt
DSA20: Mounted 0 CGLHD2SYS 263135675 577 1
$1$DGA100: (CGLHD2) Mounted 0 HDGLDAT1 453910600 27 2
$1$DGA200: (CGLHD2) Mounted 0 PRDDSK 76421400 189 2
$1$DGA300: (CGLHD2) Mounted 0 HDGLODS5 454072173 574 2
$10$DKA0: (CGLHD1) Online 0 (remote shadow member)
$10$DKA100: (CGLHD1) Online 0 (remote shadow member)
$10$DQA0: (CGLHD1) Online 0
$20$DKA0: (CGLHD2) ShadowSetMember 0 (member of DSA20:)
$20$DKA100: (CGLHD2) ShadowCopying 0 (copy trgt DSA20: 56% copied)
$20$DQA0: (CGLHD2) Online 0
$20$DQA1: (CGLHD2) Offline 1
$20$DQB0: (CGLHD2) Offline 1
$20$DQB1: (CGLHD2) Offline 1

I performed a "mcr sysman io auto" hoping that the VMS would update the list of disks getting rid of those disks with "HostUnavailable". This did not work.
My only other option is to reboot.

Is there a means to dynamically update CGLHD1 so that it no longer displays those disks with "HostUnavailable" and showing the disks from CGLHD2?

Jim

[Robert Brooks_1 · Accepted solution]

You need to reboot; there is no other way. In general, disk devices don't "go away" (there are some exceptions, but they are somewhat obscure and not relevant here).


-- Rob

[Ian Miller.]

I usally to SET DEVICE/NOAVAIL for the disks that don't exist and they will be gone next time you reboot. Setting them not available means commands that try and use them fail swiftly.

[Jim Lahman_1]

Yes, once I rebooted, all the disks are now proper.