TSM will write data until it hits the physical end of tape. When you check a tape in, the "estimated capacity" is set by the device class definition; you can change that to anything you want, reasonable or not, with UPDATE DEVCLASS. Regardless, TSM will use the full capacity of the LTO4 cartridge.
If your barcodes and/or the estimated capacity is not right, the only thing that gets messed up is the "% utilized" of a tape in "filling" status is less nearly correct. It's never more than a SWAG anyway, for a filling tape, since TSM can't know ahead of time how much the next chunk of data will be compressed by the drive. On Thu, Jul 17, 2008 at 11:07 AM, David Hensley <[EMAIL PROTECTED]> wrote: > I have LTO4 tapes with LTO3 barcodes on each tape. When the tapes are > checked in as scratch TSM sees the size of 1.5gb. When used they go to full > status with around 800gb on each tape. Compression is turned on. I believe > this is due to the LTO3 barcodes, since LTO3 compressed tapes are 800gb. I > need to know if this is the case that TSM is seeing these as LTO3s instead > of LTO4s. If someone could point me to some documentation I would > appreciate it. I have tried telling this to my management and they do not > believe this is so. Thank you. > > > > Dave Hensley > Technical Analyst > McNeilus Companies, Inc. > Desk: 1-507-374-8587 > Cell: 1-507-244-0921 > > > Although this e-mail and any attachments are believed to be free of any > virus or other defect which might affect any computer system, it is the > responsibility of the recipient to check that it is virus-free and the > sender accepts no responsibility or liability for any loss, injury, damage, > cost or expense arising in any way from receipt or use thereof by the > recipient. > > The information contained in this electronic mail message is confidential > information and intended only for the use of the individual or entity named > above, and may be privileged. If the reader of this message is not the > intended recipient, you are hereby notified that any dissemination, > distribution or copying of this communication is strictly prohibited. If > you have received this transmission in error, please contact the sender > immediately, delete this material from your computer and destroy all related > paper media. Please note that the documents transmitted are not intended to > be binding until a hard copy has been manually signed by all parties. > Thank you. >