hawihoney Posted January 16, 2009 Share Posted January 16, 2009 For those interested the complete german article can be found here. The part about the RAIDs starts with "Anwender, die die 1,5-TByte-Platte ...": http://www.heise.de/newsticker/Ausfaelle-bei-Seagate-Festplatten-durch-Firmware-Probleme--/meldung/121822 Seems that these cheap drives are only valid in desktop RAID systems (1-4 drives). For bigger RAIDs we should take the high-end drives especially build for this. Vibration in big RAIDs lead to the cheap drives being switched off by the RAID controller. This explains my 'high_fly_writes' on my 15* 1.5TB array. I do have the lastest firmware. I thought this might be of interest. Harald Quote Link to comment
Joe L. Posted January 16, 2009 Share Posted January 16, 2009 For those interested the complete german article can be found here. The part about the RAIDs starts with "Anwender, die die 1,5-TByte-Platte ...": http://www.heise.de/newsticker/Ausfaelle-bei-Seagate-Festplatten-durch-Firmware-Probleme--/meldung/121822 Seems that these cheap drives are only valid in desktop RAID systems (1-4 drives). For bigger RAIDs we should take the high-end drives especially build for this. Vibration in big RAIDs lead to the cheap drives being switched off by the RAID controller. This explains my 'high_fly_writes' on my 15* 1.5TB array. I do have the lastest firmware. I thought this might be of interest. Harald On most RAID arrays, with data stripped across all the disks, there is a LOT of disk activity on all the disks with any "write" or "read" of data on the array. With unRAID, this is not true. Only the drive being read is active, or when writing, the parity drive and the drive being written. When doing a parity check, there might be a bit more vibration, but since it is a linear read of each cylinder in turn on each disk I'd guess vibration is less than random seeks of a large number of drives. Interesting article though... It shows how tight the tolerances must be in the higher density drives. Quote Link to comment
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