From: Bob Booth - UIUC (booth@UIUC.EDU)
Date: Tue Jul 16 2002 - 09:50:19 EDT
4.3.3 allows you to change the 'factor' (see the chvg command). This factor
takes away from the MAX PV's for a volume group and adds to the MAX PP's per
PV, allowing you to have greater than the 1016 limit.
Notice below, that you have a max of 5 PV's for this VG, but 6096 PP's per
PV (bottom of output):
On Tue, Jul 16, 2002 at 09:32:26AM -0400, cbaker@GOODYEAR.COM wrote:
> I inherited a RS/6000 44P-270 running AIX 433 ML06. It has a volume group
> called "sharevg" with the following settings:
>
> rds1234:root: / > lsvg sharevg
> VOLUME GROUP: sharevg VG IDENTIFIER: 0008140fc9666069
> VG STATE: active PP SIZE: 4 megabyte(s)
> VG PERMISSION: read/write TOTAL PPs: 4338 (17352
> megabytes)
> MAX LVs: 256 FREE PPs: 305 (1220
> megabytes)
> LVs: 5 USED PPs: 4033 (16132
> megabytes)
> OPEN LVs: 5 QUORUM: 2
> TOTAL PVs: 1 VG DESCRIPTORS: 2
> STALE PVs: 0 STALE PPs: 0
> ACTIVE PVs: 1 AUTO ON: yes
> MAX PPs per PV: 6096 MAX PVs: 5
> rds1234:root: / >
>
>
> How is it possible that the PP SIZE is only 4 Mb for a 18 Gb drive?
> Doesn't AIX 4.3 restrict you to a MAX PPs per PV of 1016?
>
>
> Here is the same box's rootvg.
>
> rds1234:root: / > lsvg rootvg
> VOLUME GROUP: rootvg VG IDENTIFIER: 0008140fa19742d0
> VG STATE: active PP SIZE: 32 megabyte(s)
> VG PERMISSION: read/write TOTAL PPs: 542 (17344
> megabytes)
> MAX LVs: 256 FREE PPs: 382 (12224
> megabytes)
> LVs: 15 USED PPs: 160 (5120
> megabytes)
> OPEN LVs: 14 QUORUM: 2
> TOTAL PVs: 1 VG DESCRIPTORS: 2
> STALE PVs: 0 STALE PPs: 0
> ACTIVE PVs: 1 AUTO ON: yes
> MAX PPs per PV: 1016 MAX PVs: 32
> rds1234:root: / >
>
> Now that looks right to me.
>
> Any thoughts would be great.
>
>
> Christopher M. Baker
> Senior Technical Support Analyst
> DSE/TCO
> Goodyear Tire and Rubber Company
>
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