On 07/23/2011 09:52 AM, Felix Miata wrote:
Guys,
Here is a new one on me. I had a failure of a drive in a dmraid array, so I have replaced the array with a new pair of Carvair Black 1T drives. (WD1002FAEX-00Z3A0) The problem I see is that the drives only appear to come up at 1.5Gbps (SATA-1) instead of 3.0Gbps (SATA-II). My old drive that was the survivor from the failed array initializes just fine at 3.0Gbps. ... The new drives are capable of 6.0Gbps. Do I need to set a jumper to limit them to 3.0Gbps in order for the system to initialize them at 3.0Gbps?
Maybe WD preconfigures them as SATA1 via jumper or software? People who replace SATA drives on controllers only supporting SATA1 sometimes find drives not so configured won't be recognized at all. Maybe you need to remove an existing jumper, or run WD's setup utility, to free it from a safety valve.
Thanks Felix, I'll check the setup utility. There are no jumpers at all on the drives. The jumper settings for the drive are here: http://wdc.custhelp.com/app/answers/detail/search/1/a_id/5387#jumper What I don't know is if I need to set the PHY jumper on pins 5-6 to get it recognized as a 3.0 Gbps drive. It seems that since it is a 6.0Gbps drive, it should fall back to 3.0, but conceivably, it could default from 6.0->1.5 unless pins 5-6 are set?? I'll give that a go. Advise: Warning: NEVER delete a partition in cfdisk to create 2 partitions with dmraid after Manually configure block devices, filesystems and mountpoints have been set. (really screws with dmraid metadata and existing partitions are worthless) Solution: delete the array from the bios and re-create to force creation under a new /dev/mapper ID, reinstall/repartition :p -- David C. Rankin, J.D.,P.E. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org