ADSM-L

Re: Cartridge drive utilisation question

1996-12-17 15:05:15
Subject: Re: Cartridge drive utilisation question
From: Dianne Sharp <DSHARP AT CLEAR.CO DOT NZ>
Date: Wed, 18 Dec 1996 09:05:15 +1300
I don't think this is the problem either.  The Mount Limit is set to 1
and Mount Retention is 0.

Dianne Sharp
Operations Analyst
ISS CUSTOMER SUPPORT
Ext 4208

>----------
>From:  Leonard Boyle[SMTP:SNOLEN AT VM.SAS DOT COM]
>Sent:  Tuesday, 17 December, 1996 3:48PM
>To:    Multiple recipients of list ADSM-L
>Subject:       Re: Cartridge drive utilisation question
>
>On Tue, 17 Dec 1996 12:46:59 +1300 Dianne Sharp said:
>>I have checked the Migration processes for the disk pool and it is
>>already set to 1.  The log from ADSM definitely indicated that only one
>>process was running.  The question is why was it using 2 cartridge
>>drives?
>>
>>Dianne Sharp
>
>Dianne You might want to check the settings for mount limit and mount
>retention on the device class that defines your tape pool
>ADM will keep extra tapes/carts mounted in idle status up until the
>mount retention period. So if you have a mount limit of 2 and cart 1
>is used. When the migrate is finished with it, cart 2 will be mounted
>on the next drive. If you do a query mount, you should see one as idle
>and the other as in use. If adsm finishes with cart 2 and needs cart 3,
>it will dismount cart 1 before the mount retention period is reached.
>
>It keeps the cart/tapes in case the drive is required again.
>
>len
>
>-------------------------------------------------------------------------
>Leonard Boyle, Mainframe support            snolen AT vm.sas DOT com
>SAS Institute Inc.                          ussas4hs@ibmmail
>Room E206                                   (919) 677-8000 ext 6241
>203 SAS Campus Drive
>Cary NC 27513
>
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