Storage pools can be type random ( disk). We still need to migrate to cartridge but we have about 13 16GB disk areas set up and allocated to various storage pools as the primary pools which migrate to tape. There's no reason, with sufficient space, that you could not hold your backups on disk, but if you lose the disk you lose the backups.
>>> [EMAIL PROTECTED] 01/09/03 02:52PM >>> would occasional move data (from disk to disk) not resolve this fragmentation issue? regards juraj Salak > -----Original Message----- > From: Joshua Bassi [mailto:[EMAIL PROTECTED]] > Sent: Thursday, January 09, 2003 8:17 PM > To: [EMAIL PROTECTED] > Subject: Re: TSM Disk Pool Management > > > Unfortunately disk pools with a device class of DISK get > fragmented and > will incur a higher overhead penalty the longer they exist > (without data > moving off to tape). I had a customer try this configuration and it > ended up blowing up in their face. > > > -- > Joshua S. Bassi > IBM Certified - AIX 4/5L, SAN, Shark > Tivoli Certified Consultant -ADSM/TSM > eServer Systems Expert -pSeries HACMP > > AIX, HACMP, Storage, TSM Consultant > Cell (831) 595-3962 > [EMAIL PROTECTED] > > -----Original Message----- > From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]] > On Behalf Of > Andy Carlson > Sent: Thursday, January 09, 2003 11:09 AM > To: [EMAIL PROTECTED] > Subject: Re: TSM Disk Pool Management > > > We have given this a little bit of thought also. You would > not need to > use type=file - just enlarge your current disk pool. Expire will age > the files out of there. The only thing to watch, is for it to be > getting full, and more disk needs to be added. > > > Andy Carlson |\ _,,,---,,_ > Senior Technical Specialist ZZZzz /,`.-'`' -. ;-;;,_ > BJC Health Care |,4- ) )-,_. > ,\ ( `'-' > St. Louis, Missouri '---''(_/--' `-'\_) > Cat Pics: http://andyc.dyndns.org/animal.html > > > On Thu, 9 Jan 2003, Hokanson, Mark wrote: > > > We are considering creating an extremely large TSM disk storage pool > > (IE: 1-10TB). The goal being to eliminate going to tape. Does anyone > > have any really BIG disk pools? Are there tools available > for managing > > > large TSM disk pools over time. (IE: Reclamation, Aging > Data, etc) The > > > documentation from Tivoli suggests that we need to set it up as a > > device type=FILE. What are the drawbacks using this approach? Is > > performance dramatically impacted? etc... > > > > Thanks in advance, > > > > Mark Hokanson > > Thomson Legal & Regulatory > > >
