We have about 130 million file versions in TSM's primary storage pools
for our Isilon systems. Since we have a single offsite copy for these,
the number of copies is twice that. We exclude substantial parts of the
systems from backups as well, so the number of files on the Isilon
systems themselves is going to be several times what it is in TSM.

We have 74 filespaces defined across our two Isilons. They're used as
primary storage for a large-scale genomic sequencing operation, so we
have one filespace per gene sequencer, plus a few filespaces for final
processed data. There's one main user account involved for the
sequencing and analysis, but there's a couple dozen other users who have
some amount of data on the systems. We don't use NT ACLs so we're fine
just backing up the UNIX ownership and permissions over NFS.

-- Skylar Thompson (skylar2 AT u.washington DOT edu)
-- Genome Sciences Department, System Administrator
-- Foege Building S046, (206)-685-7354
-- University of Washington School of Medicine

On 01/ 7/13 01:44 AM, Kirk S. wrote:

Hi Skylar, Allan,

Skylar - would I be right in thinking that you have 130 million files
on your Isilon or did you mean you have 130 million files across all
versions? May I also ask how many directories and user accounts are
involved?

Allan - would you be happy to give some idea of the size of your
Isilon setup? We're being asked about backing it up to tape now and
have a number of concerns.

Cheers, Steve

-----Original Message----- From: ADSM: Dist Stor Manager
[mailto:ADSM-L AT vm.marist DOT edu] On Behalf Of Allen S. Rout Sent: 17
December 2012 20:09 To: ADSM-L AT vm.marist DOT edu Subject: Re: [ADSM-L]
Isilon Backup

On 12/17/2012 02:42 PM, Huebner, Andy wrote:

Just general questions on Isilon backup. How do you backup your
Isilon, NDMP or CIFS/NFS? NDMP FC to tape or Ethernet through the
TSM server?

Our current state (in implementation now) is:

+ Default, short-term backup needs addressed by snapshots.

+ Disaster-recovery needs addressed by replication

+ Longer-term backup needs addressed by incrementals to TSM, with
retention set to keep "enough" data.  e.g.

"Monthlies for 2 years"

verexists: 26 verdeleted: 26 retextra: 800 retonly: 800

and do incrementals monthly.


- Allen S. Rout