Re: Testing backups ...
Posted in 2004
Topics: High Availability & Replication, Backup & Restore, Platform-Specific Issues
Dirk,
You should test your backups, however your resources may not permit it on
the system your concerned with... it's a tough sell to get the disk to
restore a large DB.
However if you use a storage mgr for multiple systems/databases. Do a test
restore on a smaller system, one that you have the resources to allocate
the disk for, and validate your backup & restore architecture and
methodology in the smaller scale. No that isn't exactly what youv'e been
asked to do, but it's a good mitigating controil to ensure your getting
solid backups.
Rob,
Smack your storage guy upside his head with a frying pan, and either get
the disk you need, or scrap the HA program and save some dough. It sounds
like that admin just isn't looking to do any work that isn't visible to
their boss.
my 2 cents....
-Chris
Rob Vorbroker <rvorbroker@yahoo.com>
Sent by: owner-informix-list@iiug.org
08/04/2004 09:00 AM
Please respond to
rvorbroker@yahoo.com
To
Dirk Moolman <DirkM@mxgroup.co.za>, informix-list@iiug.org
cc
Subject
Re: Testing backups ...
Yes I think you should - preferably on a TEST system
of similar configuration. Document your results.
I also think we should routinely check HA and DR
initiatives but quite often I'm told I live in a dream
world.
I have a current situation (I'm the new guy so no
throwing stones) where the primary and HA database
servers have been kept in-step DB resource wise for
over a year but perhaps the Unix System parameters,
etc are not in sync. Now the storage manager doesn't
want to allocate any more space to the HA database
server as he states we can't PROVE that it would work.
To his point they have NEVER tested whether or not
the Secondary server 'could' take over if the Primary
went down.
I can prove that if we don't add space to the
secondary DB when we add space to the primary DB that
it won't work...
Rob
--- Dirk Moolman <DirkM@mxgroup.co.za> wrote:
>
>
> My company wants me to test my backups once a month,
> to verify that they still work and can be restored.
>
>
>
> How many of you currently do this ? Any good
> tips ?
>
>
>
>
>
> We use IDS7.31FD3, on Solaris 9, and the backups are
> done using ontape (for Informix), and ufsdumps for
> Unix (filesystems)
>
>
>
>
>
> Dirk
>
>
> ________________________________
>
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=====
Rob Vorbroker Phone: 513/336-8695
Vorbroker Consulting, Inc. Fax: 513/336-6812
www.vorbroker.com robv@vorbroker.com
sending to informix-list
sending to informix-list
chris.staubin@reebok.com wrote: > > Dirk, > > You should test your backups, however your resources may not permit it on > the system your concerned with... it's a tough sell to get the disk to > restore a large DB. No longer true. Last prices seen here for 4 TB FIBRE to SATA RAID, 3HE 19" (gives me approx 1.9 TB when configured as RAID 10) was less than 17K USD + VAT. I can read 6500 2KB pages per second (sustained) & write 3350 2KB pages per second, which is not bad for this small amount of $$$. Machine is a 4 CPU / 8 GB domain in a SunFire12K, running Solaris7 and IDS 9.40.UC3W1. google for SATA RAID or - among many other manufacturers - www.infortrend.com (that is what I use atm). Such storage units are available smaller (2 TB) also and with SCSI160 or SCSI320 interfaces as well. Then you pay like 3K USD less. Money to spend is peanuts compared to SANs from EMC or Hitachi or IBM or even HP. BTW, www.storagesearch.com has it all and more .... [ ... rest of valuable text snipped ... ] dic_k -- Richard Kofler SOLID STATE EDV Dienstleistungen GmbH Vienna/Austria/Europe