XLV Αύγουστος 10, 2009 #21 Αύγουστος 10, 2009 Και μην ξεχναμε το software raid5 write hole http://en.wikipedia.org/wiki/Standard_RAID_levels#RAID_5 In the event of a system failure while there are active writes, the parity of a stripe may become inconsistent with the data. If this is not detected and repaired before a disk or block fails, data loss may ensue as incorrect parity will be used to reconstruct the missing block in that stripe. This potential vulnerability is sometimes known as the write hole. Battery-backed cache and similar techniques are commonly used to reduce the window of opportunity for this to occur. The same issue occurs for RAID-6. ενας perc με bbu δεν θα εχει αυτο το προβλημα.
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