On Tue, 9 Feb 2010, Dan Naumov wrote: > which essentially solves the problem. Note that going this route will > probably involve rebuilding your entire array from scratch, because > applying WDIDLE3 to the disk is likely to very slightly affect disk > geometry, but just enough for hardware raid or ZFS or whatever to > bark at you and refuse to continue using the drive in an existing > pool (the affected disk can become very slightly smaller in > capacity). Backup data, apply WDIDLE3 to all disks. Recreate the > pool, restore backups. This will also void your warranty if used on > the new WD drives, although it will still work just fine.
Errm.. Why would it change the geometry? I have used this tool to change the settings on all my disks and it did not in any way cause a problem booting later. My disks are WDC WD10EADS-00L5B1/01.01A01 (1Tb "green" disks) AFAIK it just tunes EEPROM settings, it doesn't reflash the firmware. That said I have heard reports of it bricking a drive so I would test it on one drive first (not that I did, I heard the bricking reports later..) -- Daniel O'Connor software and network engineer for Genesis Software - http://www.gsoft.com.au "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum GPG Fingerprint - 5596 B766 97C0 0E94 4347 295E E593 DC20 7B3F CE8C
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