2015-02-11 15:28 GMT+03:00 Liu Yuan <namei.u...@gmail.com>: > We need to what is user's backups. Is it the whole vdi or dalta data for > different vdis?
Best scheme as i think is: 1) If backup not exists for vdi - create full backup (this is simple copy all data) 2) If backup already created - create new backup and copy only delta from previous backup. 3) If use delete old backup - remove garbage pieces that not belongs to other vdi. 4) In case of steps from 1 to 2 - check other vdi pieces for duplicate data and store only difference. But i think this is very problematic in this case. -- Vasiliy Tolstov, e-mail: v.tols...@selfip.ru jabber: v...@selfip.ru -- sheepdog mailing list sheepdog@lists.wpkg.org https://lists.wpkg.org/mailman/listinfo/sheepdog