Re: Mixed SCSI/SAN drives in LAN free, is that possible?
This is one of those questions that has an obvious answer: of course TSM knows which drives it's working with. The mapping is set ahead of time and the library manager knows what drives the storage agents can and cannot see. It won't attempt to mount a tape in a drive the storage agent can't see. Won't happen. Can't happen. The original answer: not a problem is correct. Kelly J. Lipp Storage Solutions Specialists, Inc. PO Box 51313 Colorado Springs, CO 80949 [EMAIL PROTECTED] or [EMAIL PROTECTED] www.storsol.com or www.storserver.com (719)531-5926 Fax: (240)539-7175 -Original Message- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED]]On Behalf Of Norback, Jan Sent: Wednesday, January 30, 2002 10:49 AM To: [EMAIL PROTECTED] Subject: Re: Mixed SCSI/SAN drives in LAN free, is that possible? Becky, the fact that TSM doesn't care how the drives are attached is the part that scares me. To me it sounds like: -TSM might mount a tape in driveX, which could be SCSI attached -TSM tell the storage agent to use driveX (which it doesn't have a clue about as it is SCSI) and the backup will fail. Is the above assumption correct or does TSM understand that it can't mount a tape in a drive for which there is no drive mapping for this client? SAN DGW isn't an option for this customer, I have used it for other customers. I am used to SAN and SCSI attached drives for LAN free but I haven't tried the mixture... Maybe there is a way to partition the 3494 so it looks like 2 different libraries, one with SCSI and one with SAN or there might not be a problem? /Jan Norback -Original Message- From: Davidson, Becky [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 6:11 PM To: [EMAIL PROTECTED] Subject: Re: Mixed SCSI/SAN drives in LAN free, is that possible? Jan Not a problem at all. TSM does not care how they are attached. TSM depends completely on the operating system for the intelligence on the attaching. The 3494 is also intelligent enough to know if someone else is using the drive that it can't. Drive map all the SAN drives??? What you could do which is relatively inexpensive is attach your 3590's to San Data Gateways which attach to the SAN and then they would all be SAN attached. Good luck Becky -Original Message- From: Norback, Jan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 10:53 AM To: [EMAIL PROTECTED] Subject: Mixed SCSI/SAN drives in LAN free, is that possible? Hi, I have been asked by my customer if it is possible to mix SCSI and SAN attached drives on TSM servers that are to perform LAN free backup. I know that I need to drivemapp all the SAN drives but what will TSM do with the SCSI attached drives, is it cleaver enough to make sure that it doesn't mount any tapes for LAN free backups and restores in those drives? Why not upgrade all drives? Money, money... This setup: -TSM server 4.2 on AIX 4.3.3 -3494 libraries -3590E tapes (SCSI and SAN) Regards, Jan Norback Tivoli Certified Consultant: ADSM/TSM IBM Cert. Adv. Technical Expert RS/6000 AIX Atos Origin-IT (MS/DS/OSS Unix) VA-106, PO-box 218, 5600 MD Eindhoven, The Netherlands Groenewoudseweg 1 5621 BA Eindhoven, The Netherlands Email: [EMAIL PROTECTED] Tel: +31 (0)40-2780289 Mobile: +31 (0)6-12994492 Fax : +31 40 2783962
Re: Mixed SCSI/SAN drives in LAN free, is that possible?
The StorageAgent can only map drives which its operating system knows about! The mapping process maps StorageAgent RMTs to TSM server logical drives. Orville L. Lantto Datatrend Technologies, Inc. 121 Cheshire Lane #700 Minnetonka, MN 55305 Email: [EMAIL PROTECTED] V: 952-931-1203 F: 952-931-1293 C: 612-770-9166 "Norback, Jan" <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[EMAIL PROTECTED]> 01/30/02 11:48 AM Please respond to "ADSM: Dist Stor Manager" To: [EMAIL PROTECTED] cc: Subject: Re: Mixed SCSI/SAN drives in LAN free, is that possible? Becky, the fact that TSM doesn't care how the drives are attached is the part that scares me. To me it sounds like: -TSM might mount a tape in driveX, which could be SCSI attached -TSM tell the storage agent to use driveX (which it doesn't have a clue about as it is SCSI) and the backup will fail. Is the above assumption correct or does TSM understand that it can't mount a tape in a drive for which there is no drive mapping for this client? SAN DGW isn't an option for this customer, I have used it for other customers. I am used to SAN and SCSI attached drives for LAN free but I haven't tried the mixture... Maybe there is a way to partition the 3494 so it looks like 2 different libraries, one with SCSI and one with SAN or there might not be a problem? /Jan Norback -Original Message- From: Davidson, Becky [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 6:11 PM To: [EMAIL PROTECTED] Subject: Re: Mixed SCSI/SAN drives in LAN free, is that possible? Jan Not a problem at all. TSM does not care how they are attached. TSM depends completely on the operating system for the intelligence on the attaching. The 3494 is also intelligent enough to know if someone else is using the drive that it can't. Drive map all the SAN drives??? What you could do which is relatively inexpensive is attach your 3590's to San Data Gateways which attach to the SAN and then they would all be SAN attached. Good luck Becky -Original Message- From: Norback, Jan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 10:53 AM To: [EMAIL PROTECTED] Subject: Mixed SCSI/SAN drives in LAN free, is that possible? Hi, I have been asked by my customer if it is possible to mix SCSI and SAN attached drives on TSM servers that are to perform LAN free backup. I know that I need to drivemapp all the SAN drives but what will TSM do with the SCSI attached drives, is it cleaver enough to make sure that it doesn't mount any tapes for LAN free backups and restores in those drives? Why not upgrade all drives? Money, money... This setup: -TSM server 4.2 on AIX 4.3.3 -3494 libraries -3590E tapes (SCSI and SAN) Regards, Jan Norback Tivoli Certified Consultant: ADSM/TSM IBM Cert. Adv. Technical Expert RS/6000 AIX Atos Origin-IT (MS/DS/OSS Unix) VA-106, PO-box 218, 5600 MD Eindhoven, The Netherlands Groenewoudseweg 1 5621 BA Eindhoven, The Netherlands Email: [EMAIL PROTECTED] Tel: +31 (0)40-2780289 Mobile: +31 (0)6-12994492 Fax : +31 40 2783962
Re: Mixed SCSI/SAN drives in LAN free, is that possible?
Becky, the fact that TSM doesn't care how the drives are attached is the part that scares me. To me it sounds like: -TSM might mount a tape in driveX, which could be SCSI attached -TSM tell the storage agent to use driveX (which it doesn't have a clue about as it is SCSI) and the backup will fail. Is the above assumption correct or does TSM understand that it can't mount a tape in a drive for which there is no drive mapping for this client? SAN DGW isn't an option for this customer, I have used it for other customers. I am used to SAN and SCSI attached drives for LAN free but I haven't tried the mixture... Maybe there is a way to partition the 3494 so it looks like 2 different libraries, one with SCSI and one with SAN or there might not be a problem? /Jan Norback -Original Message- From: Davidson, Becky [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 6:11 PM To: [EMAIL PROTECTED] Subject: Re: Mixed SCSI/SAN drives in LAN free, is that possible? Jan Not a problem at all. TSM does not care how they are attached. TSM depends completely on the operating system for the intelligence on the attaching. The 3494 is also intelligent enough to know if someone else is using the drive that it can't. Drive map all the SAN drives??? What you could do which is relatively inexpensive is attach your 3590's to San Data Gateways which attach to the SAN and then they would all be SAN attached. Good luck Becky -Original Message- From: Norback, Jan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 10:53 AM To: [EMAIL PROTECTED] Subject: Mixed SCSI/SAN drives in LAN free, is that possible? Hi, I have been asked by my customer if it is possible to mix SCSI and SAN attached drives on TSM servers that are to perform LAN free backup. I know that I need to drivemapp all the SAN drives but what will TSM do with the SCSI attached drives, is it cleaver enough to make sure that it doesn't mount any tapes for LAN free backups and restores in those drives? Why not upgrade all drives? Money, money... This setup: -TSM server 4.2 on AIX 4.3.3 -3494 libraries -3590E tapes (SCSI and SAN) Regards, Jan Norback Tivoli Certified Consultant: ADSM/TSM IBM Cert. Adv. Technical Expert RS/6000 AIX Atos Origin-IT (MS/DS/OSS Unix) VA-106, PO-box 218, 5600 MD Eindhoven, The Netherlands Groenewoudseweg 1 5621 BA Eindhoven, The Netherlands Email: [EMAIL PROTECTED] Tel: +31 (0)40-2780289 Mobile: +31 (0)6-12994492 Fax : +31 40 2783962
Re: Mixed SCSI/SAN drives in LAN free, is that possible?
Jan Not a problem at all. TSM does not care how they are attached. TSM depends completely on the operating system for the intelligence on the attaching. The 3494 is also intelligent enough to know if someone else is using the drive that it can't. Drive map all the SAN drives??? What you could do which is relatively inexpensive is attach your 3590's to San Data Gateways which attach to the SAN and then they would all be SAN attached. Good luck Becky -Original Message- From: Norback, Jan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 10:53 AM To: [EMAIL PROTECTED] Subject: Mixed SCSI/SAN drives in LAN free, is that possible? Hi, I have been asked by my customer if it is possible to mix SCSI and SAN attached drives on TSM servers that are to perform LAN free backup. I know that I need to drivemapp all the SAN drives but what will TSM do with the SCSI attached drives, is it cleaver enough to make sure that it doesn't mount any tapes for LAN free backups and restores in those drives? Why not upgrade all drives? Money, money... This setup: -TSM server 4.2 on AIX 4.3.3 -3494 libraries -3590E tapes (SCSI and SAN) Regards, Jan Norback Tivoli Certified Consultant: ADSM/TSM IBM Cert. Adv. Technical Expert RS/6000 AIX Atos Origin-IT (MS/DS/OSS Unix) VA-106, PO-box 218, 5600 MD Eindhoven, The Netherlands Groenewoudseweg 1 5621 BA Eindhoven, The Netherlands Email: [EMAIL PROTECTED] Tel: +31 (0)40-2780289 Mobile: +31 (0)6-12994492 Fax : +31 40 2783962
Mixed SCSI/SAN drives in LAN free, is that possible?
Hi, I have been asked by my customer if it is possible to mix SCSI and SAN attached drives on TSM servers that are to perform LAN free backup. I know that I need to drivemapp all the SAN drives but what will TSM do with the SCSI attached drives, is it cleaver enough to make sure that it doesn't mount any tapes for LAN free backups and restores in those drives? Why not upgrade all drives? Money, money... This setup: -TSM server 4.2 on AIX 4.3.3 -3494 libraries -3590E tapes (SCSI and SAN) Regards, Jan Norback Tivoli Certified Consultant: ADSM/TSM IBM Cert. Adv. Technical Expert RS/6000 AIX Atos Origin-IT (MS/DS/OSS Unix) VA-106, PO-box 218, 5600 MD Eindhoven, The Netherlands Groenewoudseweg 1 5621 BA Eindhoven, The Netherlands Email: [EMAIL PROTECTED] Tel: +31 (0)40-2780289 Mobile: +31 (0)6-12994492 Fax : +31 40 2783962