Re: OT: Backup Strategies
This WebDNA talk-list message is from 2007
It keeps the original formatting.
numero = 69262
interpreted = N
texte = 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 Web Archive of this list is at: http://webdna.smithmicro.com/
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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 Web Archive of this list is at: http://webdna.smithmicro.com/
Clint Davis
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