Try this: q actlog begindate=today-2 search=compress
You can see very quickly if any of your client systems are doing compression. On Thu, Oct 29, 2009 at 3:33 AM, Lars-Erik Öhman <[email protected]>wrote: > No change at all with a new tape deviceclass. I did set the compression to > the drive too. > > When I start the backup and do have some data on the tape, it reports that > the estimated capacity is 921 Gb, but after a while it´s 100% full and it´s > only 366Gb of data. > > /Larsa > > -----Original Message----- > From: ADSM: Dist Stor Manager [mailto:[email protected]] On Behalf Of > Robert Clark > Sent: den 28 oktober 2009 00:12 > To: [email protected] > Subject: Re: [ADSM-L] 3592 drives no compression > > Did you get a batch of short tapes? > > [RC] > > On Oct 26, 2009, at 7:59 AM, Lars-Erik Öhman wrote: > > > "Backup Archive Client Backup Summary" reports that all clients > > have 0 in "Percent Compressed". > > > > I´ll try and create a new deviceclass for tapes, and see if that > > could change anything. > > > > -----Original Message----- > > From: ADSM: Dist Stor Manager [mailto:[email protected]] On > > Behalf Of Richard Sims > > Sent: den 26 oktober 2009 15:26 > > To: [email protected] > > Subject: Re: [ADSM-L] 3592 drives no compression > > > > On Oct 26, 2009, at 9:42 AM, Lars-Erik Öhman wrote: > > > >> It´s generation 1 drives, and the driver is the latest from IBM > >> (September 2009). > >> > >> I check in device manager and the driver version is 6.2.0.1 > >> (3592J1A), and it even say in "Tape drive parameters" that > >> Compression capable is TRUE, and Compression enabled TRUE. > > > > Okay - that helps narrow it down. > > You indicate that the client options do not specify that the client > > should be doing compression. Do some 'dsmc query options' to assure > > that. > > Another thing to check is whether the REGister Node that was used for > > these clients specified COMPression=Yes - or check the session summary > > report from recent backups, for compression indications. > > > > Beyond that, the cause is obscure. I would pursue by defining a > > temporary storage pool and mgmt class (for tape isolation) performing > > a backup on a very large, ordinary-content file, look at the backup > > statistics, then perform a Select on it in the Backups table to look > > for comparable size there, to see if there is any compression in the > > path to TSM. Outside of TSM, you might take a drive from TSM, mount a > > spare 3592 tape via your OS and have a program write ordinary data to > > it until EOT was reached, where it would report its progress, and you > > could then assess compression. > > > > Richard Sims > > > > > > This communication is from a Carnegie company within the Carnegie > > Group. > > > > The information contained in it, including any attachment or > > enclosure, is intended only for the person or entity to which it is > > addressed and may contain confidential and/or privileged material. > > Any unauthorised use, review, retransmissions, dissemination, > > copying or other use of, or taking of any action in reliance upon, > > this information by persons or entities other than the intended > > recipient is prohibited. If you received this in error, please > > contact the sender and delete or shred the material immediately. > > Thank you. > > > > Opinions, conclusions and other information expressed in this > > message are not given or endorsed by my firm or employer unless > > otherwise indicated by an authorised representative independent of > > this message. > > Robert Clark > [email protected] > 503-681-0899 or 503-816-6488 > YIM:Robert_Storage_Engineer > Twitter:rclark > > > This communication is from a Carnegie company within the Carnegie Group. > > The information contained in it, including any attachment or enclosure, is > intended only for the person or entity to which it is addressed and may > contain confidential and/or privileged material. Any unauthorised use, > review, retransmissions, dissemination, copying or other use of, or taking > of any action in reliance upon, this information by persons or entities > other than the intended recipient is prohibited. If you received this in > error, please contact the sender and delete or shred the material > immediately. Thank you. > > Opinions, conclusions and other information expressed in this message are > not given or endorsed by my firm or employer unless otherwise indicated by > an authorised representative independent of this message. >
