You said the drives are 144GB? That is kind of an oddball size ... 15K says they're probably SAS, but 144 is a too much space for a 146GB SAS drive, too little for a 160GB SATA drive ... is it some kind of odd-sized SSD? What make/model are your drives? Non-certified enterprise-class drives "could" cause problems with the right drives, although most drives perform ok, but consumer/desktop drives could experience a number of issues - some seemingly benign (like unknown entries in the log) or varying degrees of performance or reliability issues (random timeouts/falling offline, slow performance, inability to configure, or even failure to be detected).
The fact that you have 10 drives on one connector could also be playing a role. The controller can certainly handle that many drives, but performance might be better if the drives were split - VD-to-VD transfers especially. Do you have a second cable for it?
Sorry, my mistake, it was a misprint - the drives from the first (RAID5) array are gineric SEAGATE 146G 15K SAS drives (ST3146855SS) and the drives from the second array (RAID10) are also SEAGATE 600G 15K (ST3600057SS) .
Regarding the cable - yes, we have one. But I have a question - is it possible to reconnect complete RAID group (for example RAID10) to this second connector without data loss? OpenManage server administrator utility also shows that Connector 0 (which connects to all drives in our case) connects to these drives via "Enclosure (Backplane)". Could you please give me some recommendations how to reconnect one RAID group drives to the unoccupied controller connector?
Ok ... SAS drives, by design, are enterprise-class, but the generic firmware of the drives may not be playing nicely with the controller.
As for adding the cable on the fly ... the controller supports drive roaming, meaning that it will pick up its place in the array from the drive regardless of which slot it is in, so I suspect this would work fine. HOWEVER, this is not something I've tried or seen anyone else try, so I offer only my "hunch" that it will work, based on what I know about the controller.
theflash1932
9 Legend
•
16.3K Posts
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April 23rd, 2013 17:00
You said the drives are 144GB? That is kind of an oddball size ... 15K says they're probably SAS, but 144 is a too much space for a 146GB SAS drive, too little for a 160GB SATA drive ... is it some kind of odd-sized SSD? What make/model are your drives? Non-certified enterprise-class drives "could" cause problems with the right drives, although most drives perform ok, but consumer/desktop drives could experience a number of issues - some seemingly benign (like unknown entries in the log) or varying degrees of performance or reliability issues (random timeouts/falling offline, slow performance, inability to configure, or even failure to be detected).
The fact that you have 10 drives on one connector could also be playing a role. The controller can certainly handle that many drives, but performance might be better if the drives were split - VD-to-VD transfers especially. Do you have a second cable for it?
nickolay
11 Posts
0
April 24th, 2013 01:00
Sorry, my mistake, it was a misprint - the drives from the first (RAID5) array are gineric SEAGATE 146G 15K SAS drives (ST3146855SS) and the drives from the second array (RAID10) are also SEAGATE 600G 15K (ST3600057SS) .
Regarding the cable - yes, we have one. But I have a question - is it possible to reconnect complete RAID group (for example RAID10) to this second connector without data loss? OpenManage server administrator utility also shows that Connector 0 (which connects to all drives in our case) connects to these drives via "Enclosure (Backplane)". Could you please give me some recommendations how to reconnect one RAID group drives to the unoccupied controller connector?
Thanks,
Nikolay
theflash1932
9 Legend
•
16.3K Posts
0
April 24th, 2013 15:00
Ok ... SAS drives, by design, are enterprise-class, but the generic firmware of the drives may not be playing nicely with the controller.
As for adding the cable on the fly ... the controller supports drive roaming, meaning that it will pick up its place in the array from the drive regardless of which slot it is in, so I suspect this would work fine. HOWEVER, this is not something I've tried or seen anyone else try, so I offer only my "hunch" that it will work, based on what I know about the controller.
nickolay
11 Posts
0
April 24th, 2013 23:00
OK, Thanks a lot for this information!
I'll try to reconnect drives to second connector one by one
Nikolay
Coreyman2000
1 Message
0
May 6th, 2013 08:00
i wounder if you try to downgrade the firmware to 12.10.4-0001 ....