Kelly,
I run a full on sat/sun; it takes about 8 hours. The rest
of the week I run an incremental. The incremental is scheduled
for 15:30 but lately I have also been getting a triggered incremental
before that.
Bill
- - -
In <00a501c0bc72$123e2490$0602a8c0@lipstr>, on 04/03/01
at 03:41 PM, "Kelly J. Lipp" <[EMAIL PROTECTED]> said:
>Bill,
>How long is a db backup taking? Are you doing full db backups daily or do
>you use a full/incremental scheme?
>My experience has shown that a db restore is just about as fast as db
>backup. That is once the process starts reading data from the tape. The
>most annoying thing about restoring the db on NT, if you have to rebuild the
>db and log volumes, is the length of time it takes to format those volumes.
>I looked at one of the db volumes using a text editor. The word eric
>appears over and over and over... Who is Eric?
>Kelly J. Lipp
>Storage Solutions Specialists, Inc.
>PO Box 51313
>Colorado Springs CO 80949-1313
>(719) 531-5926
>Fax: (240) 539-7175
>Email: [EMAIL PROTECTED] or [EMAIL PROTECTED]
>www.storsol.com
>www.storserver.com
>-----Original Message-----
>From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of
>Bill Colwell
>Sent: Tuesday, April 03, 2001 10:53 AM
>To: [EMAIL PROTECTED]
>Subject: Re: ADSM concern on Database size.
>David - I am running tsm 3.7.4 on os/390 r6. I do have a much bigger
>database.
>It has continued to perform well. Here is a 'q bd' --
>adsm> q db f=d
> Available Space (MB): 121,888
> Assigned Capacity (MB): 121,888
> Maximum Extension (MB): 0
> Maximum Reduction (MB): 12,008
> Page Size (bytes): 4,096
> Total Usable Pages: 31,203,328
> Used Pages: 28,128,310
> Pct Util: 90.1
> Max. Pct Util: 90.2
> Physical Volumes: 52
> Buffer Pool Pages: 65,536
> Total Buffer Requests: 100,564,851
> Cache Hit Pct.: 98.06
> Cache Wait Pct.: 0.00
> Backup in Progress?: No
> Type of Backup In Progress:
> Incrementals Since Last Full: 2
>Changed Since Last Backup (MB): 1,152.03
> Percentage Changed: 1.05
>Last Complete Backup Date/Time: 04/02/2001 15:36:25
>As to worrying about db restore times, as always, it depends. How fast is
>your cpu and disk subsystem? What restore time is expected? Demanded?
>If you can get the disk space for a short time, you can create a new
>instance of
>tsm and restore your production db into it to practice db restores.
>--
>--------------------------
>Bill Colwell
>C. S. Draper Lab
>Cambridge, Ma.
>[EMAIL PROTECTED]
>--------------------------
>In <[EMAIL PROTECTED]>, on 04/03/01
> at 12:52 PM, "David Browne." <[EMAIL PROTECTED]> said:
>>One of our ADSM databases runs on OS/390 2.10 and is 44GB.
>>Does anybody have a recommendation for how big you should let the database
>>get?
>>Does anyone have one on OS/390 that's much bigger?
>>Is there a limit on the size?
>>I'm concerned about the length of time it would take to recover.
>> Are there other considerations?
--
--------------------------
Bill Colwell
C. S. Draper Lab
Cambridge, Ma.
[EMAIL PROTECTED]
--------------------------
