Yes, if you manually move it from one volume to another it will defrag. But that is a manual process. If you setup a reclamation threshold on a FILE disk pool, reclamation occurs automatically.
-- 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 Salak Juraj Sent: Thursday, January 09, 2003 11:53 AM To: [EMAIL PROTECTED] Subject: Re: TSM Disk Pool Management 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 > > >
