cluster_root, cluster_usr & cluster_var storage

From: ^IT_MPG_UNIX_ADMIN <^IT__MPG__UNIX__ADMIN_at_ccmail.allegiance.net>
Date: Tue, 29 May 2001 10:32:48 -0500

     When I created our V5.1 cluster, I put all three domains on different
     slices of the same mirror set. Here's the disklabel from that disk
     
       a: 1048576 0 AdvFS #
       b: 1039373 1048576 unused 0 0 #
       c: 35556389 0 unused 0 0 #
       d: 4096 2087949 unused 0 0 #
       e: 0 0 unused 0 0 #
       f: 0 0 unused 0 0 #
       g: 16732172 2092045 AdvFS #
       h: 16732172 18824217 AdvFS #
     
     where a is cluster_root, g is cluster_usr and h is cluster_var. But
     now I am concerned about performance because I will have 6 cluster
     members in this cluster eventually trying to hit /var/tmp on the same
     cluster_var. Also, lots of our applications put data out in /usr/opt
     which is in /usr. Also my /usr filesystem is already at 55% full. What
     I should have really done is created raidsets(RAID 3/5) and put /,
     /usr and /var on their own raidsets. In any case, I know that we can
     bump up the storage by adding volumes using addvol. But can I remove
     the old disk using rmvol? What I would like to do is add the new raid
     sets and remove the old disk partitions that I initially defined. Any
     comments/suggestions/information will be greatly appreciated.
     
     Tks & Rgds,
     
     Alay Shah
     Allegiance Healthcare Corporation
     1400 Waukegan Rd.
     McGaw Park, IL 60085
     Ph - 847-578-2584
     Fax - 847-578-5586
     Email - unixadmin_at_allegiance.net
     shahal_at_allegiance.net
     
Received on Tue May 29 2001 - 15:36:32 NZST

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