Hi, Thankyou to Robin and others for your useful comments.
Is it possible to retain and continue using some of my existing tape storage pools associated with device class LTO ; and create new ones associated with device class LTO3 . ? Will the storage pools with LTO device class then use a mixture of LTO2 & 3 tapes ? And the new storage pools LTO3 tapes only ? Thanks Bill Robin Sharpe <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <ADSM-L@VM.MARIST.EDU> 21/02/2007 19:37 Please respond to "ADSM: Dist Stor Manager" To: ADSM-L@VM.MARIST.EDU cc: Subject: Re: [ADSM-L] TAPEPOOL made up of mixed LTO2 & LTO3 media If by "tapepool", you mean storage pool, then I don't think so. A storage pool must be associated with one and only one device class. Each tape volume has an associated device class. Your existing LTO2 tapes probably use a device class with a format of "ULTRIUM2C", which allows the highest capacity plus compression. When you introduce LTO3, you will probably want to use a device class with a format of "ULTRIUM3C", to take advantage of LTO3's higher density. You will need a new storage pool (or pools) to hold your LTO3 tapes. It is (apparently) possible to update the device class with a new format... at least the help for the update devclass command implies it... but I don't know what would happen to an LTO2 tape with ACCESS=READWRITE if its devclass was updated to ULTRIUM3C format... and I wouldn't risk trying it. Whether or not your library can support mixed media is another question altogether. Some libraries can handle it seamlessly (like STK L700), and other need to be partitioned into logical libraries with each partition dedicated to the different media types. Robin Sharpe Berlex Labs Bill Dourado <[EMAIL PROTECTED] TEC.COM> To Sent by: "ADSM: ADSM-L@VM.MARIST.EDU Dist Stor cc Manager" <[EMAIL PROTECTED] Subject .EDU> TAPEPOOL made up of mixed LTO2 & LTO3 media 02/21/2007 06:57 AM Please respond to "ADSM: Dist Stor Manager" <[EMAIL PROTECTED] .EDU> Hi, We are about to replace our all HP LTO-2 tape drives by LTO-3, in our NEO 4000 library. My question is, seeing the new drives can read and write both LTO-2 and LTO-3 media, can any given existing tapepool be made up of both LTO-2 and LTO-3 media ? My problem is that I don't have enough tape slots in the library and don't want to introduce a large number of LTO-3 tapes in one go. Also a few of our LTO-2 tapes are fairly new and it would be a shame to write them off. (TSM Server for Windows 5.3) Thanks Bill ********************************************************************** This electronic mail message, including any attachments, is a confidential communication exclusively between Babcock International Group PLC or its subsidiary company and the intended recipient(s) indicated as the addressee(s). It contains information which is private and may be proprietary or covered by legal professional privilege. If you receive this message in any form and you are not the intended recipient you must not review, use, disclose or disseminate it. We would be grateful if you could contact the sender upon receipt and in any event you should destroy this message without delay. Anything contained in this message that is not connected with the business of Babcock International Group PLC is neither endorsed by nor is the liability of this company. Babcock International Group PLC Company number 2342138 Registered in England 2 Cavendish Square London W1G 0PX Telephone: +44(0)20 7291 5000 Fax: +44(0)20 7291 5055 Website: www.babcock.co.uk ********************************************************************** ********************************************************************** This electronic mail message, including any attachments, is a confidential communication exclusively between Babcock International Group PLC or its subsidiary company and the intended recipient(s) indicated as the addressee(s). It contains information which is private and may be proprietary or covered by legal professional privilege. If you receive this message in any form and you are not the intended recipient you must not review, use, disclose or disseminate it. We would be grateful if you could contact the sender upon receipt and in any event you should destroy this message without delay. Anything contained in this message that is not connected with the business of Babcock International Group PLC is neither endorsed by nor is the liability of this company. Babcock International Group PLC Company number 2342138 Registered in England 2 Cavendish Square London W1G 0PX Telephone: +44(0)20 7291 5000 Fax: +44(0)20 7291 5055 Website: www.babcock.co.uk **********************************************************************