Yes, we only define one path per drive. We are NOT defining paths for every rmt device. So, each library client has 72 drives defined to it, with mulit-pathing, and we only define a path for one of the rmt devices. Same holds true for all storage agents as well.
Sean English "Strand, Neil B." <[EMAIL PROTECTED]> Sent by: "ADSM: Dist Stor Manager" <[email protected]> 02/07/2008 01:04 PM Please respond to "ADSM: Dist Stor Manager" <[email protected]> To [email protected] cc Subject Re: [ADSM-L] Question on TSM environment sizes If you are using Atape on AIX only the primary path needs to be defined IF you have enabled alternate pathing. "chdev -l rmt5 -aalt_pathing=yes" See IBM "IBM Tape Device Drivers Installation and User's Guide" PG 31, Pub GC27-2130-02 It works like a champ on AIX. Can't vouch for other platforms. Neil Strand Storage Engineer - Legg Mason Baltimore, MD. (410) 580-7491 Whatever you can do or believe you can, begin it. Boldness has genius, power and magic. -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Gee, Norman Sent: Thursday, February 07, 2008 12:43 PM To: [email protected] Subject: Re: [ADSM-L] Question on TSM environment sizes Does one need to define all the drive paths for multipath tape drives? Or does one only need to define one path and the OS will use the other paths as needed? -----Original Message----- From: ADSM: Dist Stor Manager [mailto:[EMAIL PROTECTED] On Behalf Of Strand, Neil B. Sent: Wednesday, February 06, 2008 4:22 PM To: [email protected] Subject: Re: Question on TSM environment sizes 1900 drive path statements? 13 Libclients x 72 Drives = 936 paths + 72 for the lib mgr Neil Strand Storage Engineer - Legg Mason Baltimore, MD. (410) 580-7491 Whatever you can do or believe you can, begin it. Boldness has genius, power and magic. IMPORTANT: E-mail sent through the Internet is not secure. Legg Mason therefore recommends that you do not send any confidential or sensitive information to us via electronic mail, including social security numbers, account numbers, or personal identification numbers. Delivery, and or timely delivery of Internet mail is not guaranteed. Legg Mason therefore recommends that you do not send time sensitive or action-oriented messages to us via electronic mail. This message is intended for the addressee only and may contain privileged or confidential information. Unless you are the intended recipient, you may not use, copy or disclose to anyone any information contained in this message. If you have received this message in error, please notify the author by replying to this message and then kindly delete the message. Thank you.
