Re: [BackupPC-users] BackupPC and DRBD - My experience so far

On Tue, Sep 15, 2009 at 03:12:28PM -0800, Chris Robertson wrote: > In short, it works for me. [...] Wow, thanks for sharing your experience. I figure that DRBD is a nice way to RAID-1 across multiple hosts for failover purposes. I didn't expect it to perform that well - I'll look into it for Sam

Re: [BackupPC-users] BackupPC and DRBD - My experience so far

On Wed, Sep 16, 2009 at 3:24 AM, Tino Schwarze wrote: > On Tue, Sep 15, 2009 at 03:12:28PM -0800, Chris Robertson wrote: > > > In short, it works for me. > > [...] > > Wow, thanks for sharing your experience. I figure that DRBD is a nice > way to RAID-1 across multiple hosts for failover purposes.

Re: [BackupPC-users] usb slow for random access? (was Re: Using rsync for blockdevice-level synchronisation of BackupPC pools)

heck yes, USB is slow overall. Sorry i didn't make it clear that i understood this. as you may have noticed in the other message chain, I was wondering about "especially for random access", as opposed to just slow in general. i'd expect USB-attached drives to work relatively better for random-ac

Re: [BackupPC-users] Setting up a new BackupPC server

On Mon, Sep 14, 2009 at 11:42:42AM -0700, James Ward wrote: > I'm setting up a new BackupPC server as my current one has gotten > full. This system has 2G RAM, quad Intel(R) Xeon(TM) CPU 3.20GHz and > a 3ware 6.5T array. I believe the array is currently RAID5 with no > hot spare. From what

Re: [BackupPC-users] Setting up a new BackupPC server

Jim Leonard wrote: > James Ward wrote: > >> I forgot to mention there are 16 disks in the big array. So you'd >> recommend RAID5 or 6? >> > > I'd recommend RAID1+0 actually (RAID10) if you have that many disks. > You'll have half the available disk space, but the speed of a stripe. > Pl

Re: [BackupPC-users] BackupPC and DRBD - My experience so far

dan wrote: > > On Wed, Sep 16, 2009 at 3:24 AM, Tino Schwarze > wrote: > > On Tue, Sep 15, 2009 at 03:12:28PM -0800, Chris Robertson wrote: > > > In short, it works for me. > > [...] > > Wow, thanks for sharing your experience. I figure that DRBD is a

Re: [BackupPC-users] BackupPC and DRBD - My experience so far

Chris Robertson wrote: > > Read it again. :o) Both the external XFS journal (logdev=/dev/drbd1) > AND the data partition (/dev/drbd0) are DRBD mirrored. It would be > silly to have only one or the other saved in a DR scenario. Have you investigated/tested what happens if one end or the other

Re: [BackupPC-users] BackupPC and DRBD - My experience so far

Les Mikesell wrote: > Chris Robertson wrote: > >> Read it again. :o) Both the external XFS journal (logdev=/dev/drbd1) >> AND the data partition (/dev/drbd0) are DRBD mirrored. It would be >> silly to have only one or the other saved in a DR scenario. >> > > Have you investigated/teste

[BackupPC-users] question about email reminders -- custom "to" address?

So I have a question about email reminders. I don't see a way to customize who the emails are sent to, short of changing the usernames. (I see a way to customize the domain, with $Conf{EMailUserDestDomain} = '';, but that's it.) But I have a user with username bill, his email address is billmac.

Re: [BackupPC-users] question about email reminders -- custom "to" address?

backu...@omidia.com wrote: > So I have a question about email reminders. > > I don't see a way to customize who the emails are sent to, short of > changing the usernames. (I see a way to customize the domain, with > $Conf{EMailUserDestDomain} = '';, but that's it.) > > But I have a user with usern

Re: [BackupPC-users] Setting up a new BackupPC server

dan wrote: > > I would argue that file system stability is paramount for backups and > performance is really a distant second. who cares how fast the system If you can't perform your backups in a 24-hour period, performance becomes more important. > is if it looses your data. Also, Raid5 ha

Re: [BackupPC-users] BackupPC and DRBD - My experience so far

Chris Robertson wrote: > Les Mikesell wrote: >> Chris Robertson wrote: >> >>> Read it again. :o) Both the external XFS journal (logdev=/dev/drbd1) >>> AND the data partition (/dev/drbd0) are DRBD mirrored. It would be >>> silly to have only one or the other saved in a DR scenario. >>>

Re: [BackupPC-users] Setting up a new BackupPC server

Jim Leonard wrote: > > You make it sounds like RAID-5 is incapable of saturating drive > bandwidth. I haven't seen this on any modern (2-yr-old or newer) > machine with more than one CPU. And he's using hardware RAID so the > point is moot anyway. With a large number of drives raid5 should be

Re: [BackupPC-users] BackupPC and DRBD - My experience so far

Les Mikesell wrote: > Chris Robertson wrote: > >> Les Mikesell wrote: >> >>> Chris Robertson wrote: >>> >>> Read it again. :o) Both the external XFS journal (logdev=/dev/drbd1) AND the data partition (/dev/drbd0) are DRBD mirrored. It would be silly to have onl

Re: [BackupPC-users] BackupPC and DRBD - My experience so far

Chris Robertson wrote: > Have you investigated/tested what happens if one end or the other crashes or they lose connectivity for some period of time? I think drbd has some tricks to deal with that but I don't know how well they work in practice. >>> Wel

Re: [BackupPC-users] BackupPC broke after upgrade to 3.2.0beta0

Well, I figured it out. Looked in /home/backuppc/data/log/LOG (I am a BackupPC newb, and didn't know that it had its own log) Found out that I needed to install the File::Listing perl module Backups are working now as they were before. Thanks for the suggestions! - Stu Stuart Matthews wrote: >

Re: [BackupPC-users] Setting up a new BackupPC server

> > > I would argue that file system stability is paramount for backups and > > performance is really a distant second. who cares how fast the system > > If you can't perform your backups in a 24-hour period, performance > becomes more important. > > if you backup data just to lose it, performance

Re: [BackupPC-users] BackupPC and DRBD - My experience so far

>Read it again. :o) Both the external XFS journal (logdev=/dev/drbd1) >AND the data partition (/dev/drbd0) are DRBD mirrored. It would be >silly to have only one or the other saved in a DR scenario. ok, i see it. > That seems dangerous for a long-distance connection. I wonder if there > is an

Re: [BackupPC-users] Setting up a new BackupPC server

We're building a new backuppc server at the moment aswell, the box is using 8x 300gb SAS 10k drives in raid 10, the decision of whether to use raid5/6 or raid10 is difficult. At the moment raid10 with 1.1TB gives us 12-18 months before we reach our capacity, however with raid5 we have 2100gb (rough