another defragcron question

From: Richard Bemrose <rb237_at_phy.cam.ac.uk>
Date: Thu, 06 Aug 1998 12:33:12 +0100 (BST)

Hello fellow admins,

Following on from Judith Reed's <jreed_at_wukon.appliedtheory.com> summary on
Tue, 04 Aug 1998 regarding "SUMMARY: defragcron causes corruption in ADVFS
filesys?" I was pleased to read that defrag does not leave a file system
in an inconsistent state. However I was alarmed to hear, under certain
conditions, defrag could cause a system panic (not desirable on our main
group server!).

So I was wondering how I could reduced the likelihood of a system panic
(assuming I leave defrag enabled). What are fellow system admin's views on
the following:
  1) perform defrag monthly (or weekly)
  2) write a wrapper which only perform defrag if the domain is less than
     a predefined capacity (any recommendations?) else mail root
  3) within "/usr/sbin/defragcron", reduce the "def_defrag_threshold"
     value (again, any recommendations?)
  4) a mixture of 1), 2) and/or 3)

Any suggestions are welcome. Summary to follow.

Regards,
Rich

 /_/_/_/_/_/_/_/_/_/_/_/_/_/_/_/ _ \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\
/_/ Richard A Bemrose /_\ Polymers and Colloids Group \_\
/_/ email: rb237_at_phy.cam.ac.uk /_\ Cavendish Laboratory \_\
/_/ Tel: +44 (0)1223 337 267 /_\ University of Cambridge \_\
/_/ Fax: +44 (0)1223 337 000 /_\ Madingley Road \_\
/_/ (space for rent) / \ Cambridge, CB3 0HE, UK \_\
 /_/_/_/_/_/_/ http://www.poco.phy.cam.ac.uk/~rb237 \_\_\_\_\_\_\
             "Life is everything and nothing all at once"
              -- Billy Corgan, Smashing Pumpkins
Received on Thu Aug 06 1998 - 11:34:12 NZST

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