Thanks Troy,
As I mentioned to Kelly bandwidth makes that virtually impossible in
South Africa.
Our monopolistic Telcoms supplier Telkom put that to rest. 2nd Operator
to open shortly so we are holding thumbs.
We did a POC with DD devices and besides the comms inhibitor, they were
fantastic for the DB compression and dedup.
Looks like we should revisit it..
Thanks Again
Adrian Compton
Aspen Pharmacare Port Elizabeth
tel: +2741 4072855
Fax: +2741 453 7452
Cell: +27823204495
Email: acompton AT aspenpharma DOT com
________________________________
From: Troy Schuler [mailto:schulerta AT gmail DOT com]
Sent: 03 July 2008 14:06 PM
To: Adrian Compton
Subject: Re: [ADSM-L] VTL Selection
I would recommend not using a VTL at all. You take on of the worst
features of Tapes (management) and plunk it down on disk taking away
a lot of the freedom of using disk which is inherent in non-sequential
media access.
As far as a NAS device, there is only one that could accomplish all of
your goals, Data Domain. Dedupe'ing your data will make it perfect for
WAN replication. You could have two separate DD Restorers using
Bi-Directional replication data backed up at site A replicated to the DD
Restorer at site B and vice-versa.
You would be able to squash your Informix backup window in half. Without
having to worry about reclamation and admin tape resources the
DD Restorer will just be gobbling up your data. As a former TSM Admin, I
remember spending a great deal of time worrying about reclamations.
That would be a thing of the past with a DD Restorer.
I have attached a Glasshouse Technologies TSM/Data Domain white paper.
Good Luck,
Troy
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Hi all
As I value all your opinions tremendously, I thought I would bounce this
question to all.
Current Config.
TSM 5.5 on AIX 5.3 ML4 on p570 LPAR - 2GB Memory
16GB TSM DB
95 Nodes
+- 2-3 TB data daily
EMC SAN (All Raid Groups are Raid 5)
1.5 TB Disk pool
TS3310 Tape Library with 108 Data Slots, 18 IO Ports, 4 x 3576 LTO3
Drives
ALL Connected via FC Mac data Switches at 2GB
TSM DB located on Local Disk,
Balance on activity on SAN
Large IBM Blade centre running Native as well as VMware VM's i.e.
EXCHANGE Server, File Servers, DC's etc
All Windows OS, AIX OS, and MSSQL backups go to DISKPOOL
MONTHLY, WEEKLY, YEARLY are sent to TAPE, as well as file Servers daily
Current Backups for Informix and its logical logs take around 4 hours to
Tape. 280GB Database.
When all drives are busy, logical logs are not backed up in some
instances for 2-4 hours, as I do like to give reclaim and admin tape
resource processes max resources.
I am not utilizing LAN-FREE yet.
I have 2 sites running the above, 1200km apart
Requirement
I would like to have Informix, and its logical logs backup to a medium
that is permanently online and not affected by tapes drives being fully
utilized.
My gut feel after listening to all the discussions posted here is to
look at a VTL solution or a NAS device that would be migrated daily to
tape.
I also do not want to duplicate the data on to another disk device
purely to put the business at ease when the risk of failure on a VTL
Disk or NAS Disk device is the same as the logs waiting to be backed up
on a RAID 5 LUN in the SAN. The business cannot afford to have a
disaster that would require rolling back more than 30 minutes, so VTL to
me does look preferable.
We are also in the position to have the device located at another
location on our site to reduce risk as we have a large manufacturing
facility and it would still be FC linked.
Is anyone using this type of solution as I have explained above?
I hope I have explained the scenario sufficiently and look forward to
your comments, observations and suggestions.
Kind Regards
Adrian Compton
IT Baan Operation/ Group IBM Tivoli Admin
Pharmacare Limited trading as Aspen Pharmacare
P O Box 4002
Korsten
Port Elizabeth
6014
Switchboard Tel No: +27 (0) 41 407 2111
Tel No: +27 (0) 41 407 2855
Fax: +27 (0) 41 453 7452
Cell: +27 (0) 82 320 4495
Email : acompton AT aspenpharma DOT com This email is solely for the named
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