Re: Backup from huge Maildirs

• Marc Schiffbauer <marc@schiffbauer.net> [070908 10:46]:
  > * Oliver Hitz schrieb am 03.09.07 um 19:13 Uhr:
  > >
  > > No perfect solution, but I had a similar problem and solved it by using
  > > reiserfs instead of ext3 for the maildirs and backup partition. ext3 is
  > > much slower than reiserfs if you're handling directories containing huge
  > > numbers of files.
  >
  > Do not use reiserfs if you do not want to trash your data.
  >
  > I had several bad experiences with reiserfs.
  >
  > We used it as spool storage for a really huge MTA delivering about 80 millions
  > mails per month. So many million files were created and deleted each day.
  >
  > The filesystem got corrupted from time to time without having had
  > system crashes or the like.
  

I've used reiserfs for deep maildir maildir storage and have never had a bad experience with it. This is on systems that do several million deliveries a month as well, used it for several years.

I did have one instance where corruption occured, and this was after the system hung, a reiserfsck fixed the problem. I dont find this to be a bad experience.

> I suggest using XFS for such things. Its really fast and on this
> particular MTA the spool storage is stable since we switched to XFS.

Funny... we tried XFS and had such severe corruption, it wasn't funny. Perhaps this was at a point when XFS wasn't quite as solid and has maybe improved since, but I know my hair turned grey during this period.

micah

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