ADSM-L

Re: Urgent: server down , lvmAddVol error on restart

2002-05-16 14:16:27
Subject: Re: Urgent: server down , lvmAddVol error on restart
From: "Malbrough, Demetrius" <DMalbrough AT TTIINC DOT COM>
Date: Thu, 16 May 2002 13:15:43 -0500
This may help you a bit!!!

Problem Desc:  What are the maximum Database log LOG Logical Volume Sizes?

Solution:  The maximum Database log Logical Volume Sizes(*) are as follows:

Recovery Log: 5,704,253,440 bytes,
5,440 MB or
5.3125 GB

Data Base: 570,425,344,000 bytes,
544,000 MB or
531.25 GB.

Symptoms of exceeding:
ANR9999D adsmstart.c(2379): error=35 from LVMADDVOL

Refr: /lvm/lvm.h
#define LVMRC_MAX_LV_SIZE 35 /* Max Logical Vol size reached.*/

(*) These values are not affected by mirroring as mirrors do not affect the
logical volume size or the size of the LPT, Logical Partition Table. It is
the amount space reserved for storing the LPT in the check point area that
limits the logical volume size.

Another method to determine the maximum logical volume size is to use the
undocumented "SHow LVMFA" command. This is the preferred method as it is
possible that the maximum logical volume size may be changed in some future
version. The primary areas of interest are the output titled "DB Logical
Partition Table area" and "LOG 1 Logical Partition area". The "LOG 2..."
section may be ignored as this area is for a design that was never
implemented.

adsm> show lvmfa

LVM fixed storage area capacities:

Disk Table area:
14 pages allocated; 33 entries/page; 470 total entries.
Using an average disk name length of 37 characters.

Copy Table area:
6 pages allocated; 145 entries/page; 870 total entries.

DB Logical Partition Table area:
200 pages allocated; 679 entries/page; 135995 total entries;
Maximum possible DB LP Table size: 531.2 Gb.

LOG 1 Logical Partition Table area:
2 pages allocated; 677 entries/page; 1355 total entries;
Maximum possible LOG 1 LP Table size: 5.3 Gb.

LOG 2 Logical Partition Table area:
2 pages allocated; 677 entries/page; 1355 total entries;
Maximum possible LOG 2 LP Table size: 5.3 Gb

Regards,

Demetrius Malbrough
UNIX/TSM Administrator

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