Hi, thank you for your suggestion. At moment I have BackupPC host that use local filesystem as pool (let's say /backuppc folder). If I understood, necessary steps are: 1) add iSCSI client on BackupPC, to be able to use iSCSI target on QNAP 2) create RAID1 (with mdadm??) with local filesystem AND iSCSI 3) reconfigure backuppc to use folder on raid1 device correct?
Thankyou! >----Messaggio originale---- >Da: chrisc...@knebb.de >Data: 15/12/2015 20.49 >A: "absolutely_f...@libero.it"<absolutely_f...@libero.it>, "General list for user discussion, questions and support"<backuppc-users@lists.sourceforge.net> >Ogg: Re: Storage replica > >Well, this information would have been helpful before ;) > >So in this case instead of trying to add DRBD to the QNAP host I would >suggest you export an iSCSI target to the BackupPC host. Add iSCSI >client to your BackupPC server and use the iSCSI target as underlying >device for local RAID1. Thus, you always have an up-to-date secondary >device available. Additionally use snapshot functionality of QNAP and >you even have protection against filesystem failures, > > >Greetings > >Christian > >Am 15.12.2015 um 18:44 schrieb absolutely_f...@libero.it: >> Hi Stephen, >> sorry, I forgot to mention that my secondary storage is a QNAP device. >> Actually there is a way to install BackupPC on it: >> >> http://wiki.qnap.com/wiki/How_to_install_the_BackupPC_application >> >> Anyway, I would prefer keeping configuration as much standard as possible. >> My choice is limited to QNAP daemon (NFS, rsyncd, samba). >> Thankyou! >> >> >> >>> ----Messaggio originale---- >>> Da: step...@physics.unc.edu >>> Data: 15/12/2015 14.41 >>> A: "absolutely_f...@libero.it"<absolutely_f...@libero.it>, <backuppc- >> us...@lists.sourceforge.net> >>> Ogg: Re: [BackupPC-users] R: Re: R: Re: Storage replica >>> >>> (Unless someone mentioned it and I missed it), I'm surprised no one has yet >>> offered the standard reply: stand up a 2nd independent BackupPC server. >>> >>> Because it's totally separate, you're free to configure it identically to >>> the first one or if it's simply for DR, set up a different backup schedule >>> (ie, weekly or monthly rather than daily) and retention period -- for >>> example keeping only the last 2 backups rather than a long backup >>> history... Easy to adjust to fit your available storage and business needs. >>> >>> Slightly more work up front, but easy to perform restores without depending >>> on another server. >>> >>> Hth. >>> ~Stephen >>> >>> On Mon, 14 Dec 2015, absolutely_f...@libero.it wrote: >>> >>>> Hi, >>>> thanks to both :) >>>> DRDB sounds interesting :) >>>> >>>> >>>>> ----Messaggio originale---- >>>>> Da: chrisc...@knebb.de >>>>> Data: 14/12/2015 15.45 >>>>> A: <backuppc-users@lists.sourceforge.net> >>>>> Ogg: Re: [BackupPC-users] R: Re: Storage replica >>>>> >>>>> Hi, >>>>> >>>>> sorry, using rsync for this purpose is absolutely not recommended! >>>>> >>>>> As always, it depends on what you want to get. If you do not mind having >>>>> old data as long as you have it, it might be fine with rsync running >>>>> once a month. You have a pool of 2.5TB- on my pool of 1.4TB I aborted >>>>> rsync after 2days! So you might need 3days or more for a ful rsync run. >>>>> I doubt you want it this way! >>>>> >>>>> There is no easy ways to have them always in sync. All file level >>>>> methods are supposed to take ages because of the hardlinks. So you might >>>>> want to use block based duplication. >>>>> One possibility is DRBD (which I do here). It is RAID1 through network. >>>>> If you do not want the remote node slow down local file access you might >>>>> think of a periodic disconnect and reconnect. Besides of this it appears >>>>> to be rock stable and reliable. >>>>> Another possibility are of course distributed file systems. But as you >>>>> do not need write access on remote as long as primary is alive it might >>>>> be overkill. >>>>> Last suggestion is ZFS which I do not know at all. But it appears to >>>>> have some functionality. Try it. >>>>> >>>>> I would say use DRBD ;) And definetly forget about rsync! >>>>> >>>>> Greeting >>>>> >>>>> Christian >>>>> >>>>> >>>>> >> ------------------------------------------------------------------------------ >>>>> _______________________________________________ >>>>> BackupPC-users mailing list >>>>> BackupPC-users@lists.sourceforge.net >>>>> List: https://lists.sourceforge.net/lists/listinfo/backuppc-users >>>>> Wiki: http://backuppc.wiki.sourceforge.net >>>>> Project: http://backuppc.sourceforge.net/ >>>>> >>>> >>>> >>>> >> ------------------------------------------------------------------------------ >>>> _______________________________________________ >>>> BackupPC-users mailing list >>>> BackupPC-users@lists.sourceforge.net >>>> List: https://lists.sourceforge.net/lists/listinfo/backuppc-users >>>> Wiki: http://backuppc.wiki.sourceforge.net >>>> Project: http://backuppc.sourceforge.net/ >>>> >> >> ------------------------------------------------------------------------------ >> _______________________________________________ >> BackupPC-users mailing list >> BackupPC-users@lists.sourceforge.net >> List: https://lists.sourceforge.net/lists/listinfo/backuppc-users >> Wiki: http://backuppc.wiki.sourceforge.net >> Project: http://backuppc.sourceforge.net/ > > ------------------------------------------------------------------------------ _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: http://backuppc.wiki.sourceforge.net Project: http://backuppc.sourceforge.net/
