Re: Backups Hardwares for FreeBSD

On October 23, 2007 02:24 pm you wrote:
On Tue, Oct 23, 2007 at 01:38:21PM -0700, Freddie Cash wrote:
On October 23, 2007 09:34 am Paulo Fragoso wrote:
We have a FreeBSD mail server with 1TB RAID 6 using Areca ARC-1220
controler, all works fine.

Today our backups are made on DDS-4 tapes, they are very slow and
too small, this is our problem. What is a good (modern) alternative
to DDS-4 working on FreeBSD?

For our multi-TB systems, we do disk-based backups using dar ... to
another multi-TB system. :)

We use a custom shell script to handle creating full and incremental
backups and to rotate through multiple directories to keep a couple
backups around. All via gigabit ethernet and NFS. And once a week
we copy a full backup offsite via SSH tunnels to another multi-TB
system via a gigabit fibre link.

We're using RAID5 with hot-spares on 3Ware 9550SX controllers.

Any issues withe RAID5 sets on the 3Ware controllers? I've heard bad
things about RAID5 on older 3Ware controllers when a disk fails. Just
wondering if the situation is improved.

We've been using RAID5 on 3Ware 7506-4LP, 9500S, and 9550SX controllers
from 3Ware without any issues. When a drive dies, we use the web GUI to
remove the drive from the array, replace the drive with a new one, mark
the new one as a hot-spare, and then watch as the controller rebuilds the
array with the new drive. On the 7506 we have to power down the servers,
but our big multi-TB systems have nice SATA hot-swap backplanes.

Haven't had any issues running FreeBSD 5.x (twe), 6.x (twa), or Debian
Linux 4.x (3w-9xxx) on these cards.

Our largest array is currently 4 TB usable space (2x 2TB arrays combined
via LVM). Most of our systems are < 1TB.

--
Freddie Cash, LPIC-2 CCNT CCLP Network Support Technician
School District 73 (250) 377-HELP [377-4357]
fjwcash+freebsd@xxxxxxxxx
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Relevant Pages

  • Re: Backups Hardwares for FreeBSD
    ... Today our backups are made on DDS-4 tapes, they are very slow and too ... we do disk-based backups using dar ... ... We're using RAID5 with hot-spares on 3Ware 9550SX controllers. ...
    (freebsd-isp)
  • Re: Backups Hardwares for FreeBSD
    ... Today our backups are made on DDS-4 tapes, they are very slow and too ... we do disk-based backups using dar ... ... We're using RAID5 with hot-spares on 3Ware 9550SX controllers. ...
    (freebsd-isp)
  • RE: SATA Hotplug kills uninvolved gRAID3
    ... maybe you can use one computer for backups and one ... > controllers in one computer. ... while the RAID disks remain untouched. ... > home: provider ad14 disconnecte d. ...
    (freebsd-current)