Re: [Dovecot] backup mdbox best strategy

2013-12-09 Thread claus
Am 2013-12-07 10:04, schrieb Robert Schetterer: Am 07.12.2013 08:53, schrieb Claus: Thanks for your suggestion to use maildir, but i'm sure the key problem are the large Number of small files. the backup goes first to diskstorage and afterwards to LTO4 Tapes. We backup with EMC-Networker. The ba

Re: [Dovecot] backup mdbox best strategy

2013-12-09 Thread claus
Am 2013-12-02 18:47, schrieb Claus: Hello, i have to backup (tape library) a mailsystem with about 300.000 Mailboxes on 2 backends. Summary of all mailboxes are 2 TByte. The mailstore is mdbox. Is it save to do a simple filesystem backup (full and incremental) with backupsoftware? What is the pr

Re: [Dovecot] backup mdbox best strategy

2013-12-07 Thread Robert Schetterer
Am 07.12.2013 08:53, schrieb Claus: > Thanks for your suggestion to use maildir, but > i'm sure the key problem are the large Number of small files. > the backup goes first to diskstorage and afterwards to LTO4 Tapes. > We backup with EMC-Networker. The backuptime of large files (some GB) > are nor

Re: [Dovecot] backup mdbox best strategy

2013-12-06 Thread Claus
Thanks for your suggestion to use maildir, but i'm sure the key problem are the large Number of small files. the backup goes first to diskstorage and afterwards to LTO4 Tapes. We backup with EMC-Networker. The backuptime of large files (some GB) are normal. I wonder if there is no one who opera

Re: [Dovecot] backup mdbox best strategy

2013-12-06 Thread Nick Edwards
Claus, Robert's suggestion is good, we backup maildir, with 5.9TB in 2 hours to SATA , we also run a backup of that backup, so we have two extra copies (this is on top of NAS snapshots) tape is just too slow for anything serious these days. N ik On 12/5/13, Claus wrote: > Am 02.12.2013 20:37, s

Re: [Dovecot] backup mdbox best strategy

2013-12-05 Thread Charles Marcus
On 2013-12-05 6:43 AM, Claus wrote: Now we are using Maildir on cyrus and the (full)-backup takes about 20 hours on one backend storing 150 GB of Mails in about 3 million files. !? What backup software are you using? Not to take away from the advantages of mdbox, but... I use rsnapshot, an

Re: [Dovecot] backup mdbox best strategy

2013-12-05 Thread Robert Schetterer
Am 05.12.2013 12:43, schrieb Claus: > Am 02.12.2013 20:37, schrieb Robert Schetterer: >> Am 02.12.2013 18:47, schrieb Claus: >>> Hello, >>> >>> i have to backup (tape library) a mailsystem with about 300.000 >>> Mailboxes on 2 backends. Summary of all mailboxes are 2 TByte. >>> The mailstore is mdb

Re: [Dovecot] backup mdbox best strategy

2013-12-05 Thread Claus
Am 02.12.2013 20:37, schrieb Robert Schetterer: Am 02.12.2013 18:47, schrieb Claus: Hello, i have to backup (tape library) a mailsystem with about 300.000 Mailboxes on 2 backends. Summary of all mailboxes are 2 TByte. The mailstore is mdbox. Is it save to do a simple filesystem backup (full and

Re: [Dovecot] backup mdbox best strategy

2013-12-02 Thread Robert Schetterer
Am 02.12.2013 18:47, schrieb Claus: > Hello, > > i have to backup (tape library) a mailsystem with about 300.000 > Mailboxes on 2 backends. Summary of all mailboxes are 2 TByte. > The mailstore is mdbox. > Is it save to do a simple filesystem backup (full and incremental) with > backupsoftware? h

[Dovecot] backup mdbox best strategy

2013-12-02 Thread Claus
Hello, i have to backup (tape library) a mailsystem with about 300.000 Mailboxes on 2 backends. Summary of all mailboxes are 2 TByte. The mailstore is mdbox. Is it save to do a simple filesystem backup (full and incremental) with backupsoftware? What is the prefered strategy to do a backup for