Re: OT: Backup Strategies
This WebDNA talk-list message is from 2007
It keeps the original formatting.
numero = 69263
interpreted = N
texte = We use a drive raid with 8 firewire spots and we rotate out the 8th spot offisite, in addition to a local backup drive and a mirror. Drives are cheap!! On Sep 11, 2007, at 2:40, Clint Davis wrote: > I have a problem with that strategy. Let's say I have a file that > becomes > corrupt, and I don't figure this out until 3 days later. The > version on the > mirror will be corrupt just like the original. No? > > > On 9/11/07 2:32 PM, "Christophe Billiottet"
wrote: > >> As far as we are concerned, we want to be able to reboot from the >> backup (OS X only). This is why we do mirror copies using SuperDuper. >> In case of disk failure, we just boot from the backup and this is it! >> extremely reliable. >> >> - chris >> >> >> >> >> On Sep 11, 2007, at 16:05, Clint Davis wrote: >> >>> We're a small ad agency with 15 employees. We have a mix of OS X >>> 10.4 & >>> Windows XP computers. We're currently using a DLT8000 drive with >>> Retrospect >>> 6 and doing a differential backup on all the systems each night. We >>> just use >>> tapes until they're full, and we only reuse tapes every 3 years or >>> so. I >>> want to move to a more efficient, sensible backup strategy like GFS >>> (grandfather-father-son). >>> >>> I'm concerned about data safety in case of fire, but I also need to >>> restore >>> data quickly in case of a drive failure or file deletion. Does the >>> scenario >>> below make sense in this case? >>> >>> * 5 Weekday tapes for incremental backup (Sons - to be rotated >>> weekly) >>> * 3 Saturday tapes for differential backup (Fathers - to be rotated >>> monthly) >>> * 1 Sunday disk for full backup (Grandfather - to be rotated >>> annually) >>> * Only one tape would be kept onsite at a time > > > > > ------------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list . > To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to digest@talk.smithmicro.com> > Web Archive of this list is at: http://webdna.smithmicro.com/ ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
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We use a drive raid with 8 firewire spots and we rotate out the 8th spot offisite, in addition to a local backup drive and a mirror. Drives are cheap!! On Sep 11, 2007, at 2:40, Clint Davis wrote: > I have a problem with that strategy. Let's say I have a file that > becomes > corrupt, and I don't figure this out until 3 days later. The > version on the > mirror will be corrupt just like the original. No? > > > On 9/11/07 2:32 PM, "Christophe Billiottet" wrote: > >> As far as we are concerned, we want to be able to reboot from the >> backup (OS X only). This is why we do mirror copies using SuperDuper. >> In case of disk failure, we just boot from the backup and this is it! >> extremely reliable. >> >> - chris >> >> >> >> >> On Sep 11, 2007, at 16:05, Clint Davis wrote: >> >>> We're a small ad agency with 15 employees. We have a mix of OS X >>> 10.4 & >>> Windows XP computers. We're currently using a DLT8000 drive with >>> Retrospect >>> 6 and doing a differential backup on all the systems each night. We >>> just use >>> tapes until they're full, and we only reuse tapes every 3 years or >>> so. I >>> want to move to a more efficient, sensible backup strategy like GFS >>> (grandfather-father-son). >>> >>> I'm concerned about data safety in case of fire, but I also need to >>> restore >>> data quickly in case of a drive failure or file deletion. Does the >>> scenario >>> below make sense in this case? >>> >>> * 5 Weekday tapes for incremental backup (Sons - to be rotated >>> weekly) >>> * 3 Saturday tapes for differential backup (Fathers - to be rotated >>> monthly) >>> * 1 Sunday disk for full backup (Grandfather - to be rotated >>> annually) >>> * Only one tape would be kept onsite at a time > > > > > ------------------------------------------------------------- > This message is sent to you because you are subscribed to > the mailing list . > To unsubscribe, E-mail to: > To switch to the DIGEST mode, E-mail to digest@talk.smithmicro.com> > Web Archive of this list is at: http://webdna.smithmicro.com/ ------------------------------------------------------------- This message is sent to you because you are subscribed to the mailing list . To unsubscribe, E-mail to: To switch to the DIGEST mode, E-mail to Web Archive of this list is at: http://webdna.smithmicro.com/
Bob Minor
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