Is anyone using redundant tape SAN with TSM on AIX?
Andy Huebner
We utilize a redundant tape SAN at our main data centers with multiple host
site HBA ports. Using the Atape control and data path fail-over options we have
twelve device entries for each physical tape device. Works really well and this
is in an AIX/LPAR/VIO environment, we've virtualized the
Is it worth the work?
Are there any VTLs involved?
I may be doing 4 TSM servers to 18x 3952's, 8x LTO6 shared drives and 120x
LTO1's for each server non-shared in multiple DataDomains. I also have LANFree
clients that do not support redundant fabrics.
Thank you,
Andy Huebner
-Original
Andy,
What do you mean by redundant tape san? Multiple tape libraries at
the same or remote location? Tape drives with more than one fiber port?
Thanks,
Rick
At 08:19 AM 2/26/2014, you wrote:
Is anyone using redundant tape SAN with TSM on AIX?
Andy Huebner
I personally think it's worth the effort, not so much for the fail-over but for
the fact the Atape driver will do some HBA load balancing for you to maximize
performance across less utilized HBA ports. We do have a few ProtecTier's in
the mix and also a Windows 2008R2 based LAN Free server, the
The concept, 2 fabrics, 1 server to 1 drive.
In practice, many servers and many drives and many libraries.
Andy Huebner
-Original Message-
From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Rick
Saylor
Sent: Wednesday, February 26, 2014 9:52 AM
To:
Andy,
Dual-ported drives such as the 3592 can be connected to both fabrics.
Single ported drives such as lto4 can be connected only to one fabric
but you can alternate which fabrics the drives are connected to. So,
half of the single ported drives are on one fabric and half are on
the other. The
Our tape environment has it's own SAN and it is not redundant. That is, we
have a single fabric that all servers and tape drives attach to.
Our tape drives are single path attached to the fabric. The drives have dual
FC ports, but we only use one.
Each server has dual HBA cards which connect
As always this list has wealth of knowledge. If we build it I may have real
questions.
Thanks everyone.
Andy Huebner
-Original Message-
From: ADSM: Dist Stor Manager [mailto:ADSM-L@VM.MARIST.EDU] On Behalf Of Rick
Saylor
Sent: Wednesday, February 26, 2014 12:15 PM
To:
