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." <NBStrand AT LMUS.LEGGMASON DOT COM>
Sent by: "ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
02/07/2008 01:04 PM
Please respond to
"ADSM: Dist Stor Manager" <ADSM-L AT VM.MARIST DOT EDU>
To
ADSM-L AT VM.MARIST DOT EDU
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:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Gee, Norman
Sent: Thursday, February 07, 2008 12:43 PM
To: ADSM-L AT VM.MARIST DOT EDU
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:ADSM-L AT VM.MARIST DOT EDU] On Behalf Of
Strand, Neil B.
Sent: Wednesday, February 06, 2008 4:22 PM
To: ADSM-L AT VM.MARIST DOT EDU
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.
|
