dual port SAS?

dead_man · 9th September 2009, 5:14 PM

what does it mean when people ask if a SAS drive is dualport? whats the difference

Dragon_191 · 9th September 2009, 5:31 PM

Alot of enterprise SAS drives are dual port for redundancy and are connected to 2 different SAS controllers incase a controller fails. You can also get dual port SATA disks.

MetalPhreak · 10th September 2009, 10:07 PM

Uhh I don't think there are any dual port SATA drives (dual ports isn't part of the sata spec). There are nearline SAS drives, which are basically normal 7200rpm desktop drives with SAS controllers.

But yeah, everything else he said is spot on. Its for redundant controllers/cable pathways.

terrastrife · 10th September 2009, 10:13 PM

http://staticice.com.au/cgi-bin/sear...al+port&spos=1

so what are these? fairy-magic-ata?

Dragon_191 · 10th September 2009, 10:18 PM

Quote:

Originally Posted by terrastrife

http://staticice.com.au/cgi-bin/sear...al+port&spos=1

so what are these? fairy-magic-ata?

Yep, those are the dual port SATA disks i've used in the past. Pretty sure they were WD disks.

MetalPhreak · 11th September 2009, 3:42 PM

Weird. I've never seen those before. Seems to be only IBM who makes them. Are you sure they aren't just mislabeled SAS nearline drives?

10th September 2009, 10:13 PM	#4
terrastrife Member Join Date: Jun 2006 Location: ADL/SA The Monopoly State Posts: 15,948	http://staticice.com.au/cgi-bin/sear...al+port&spos=1 so what are these? fairy-magic-ata? __________________ D90/35mm1.8/SB900 Main/X58-USB3 F5/4GHz i7 950/48GB RipjawsZ/GTX 670/SSD 520 Series unRAID5/X2 4000+/30TB/16 Disk MidiTower/NeoHE

9th September 2009, 5:31 PM	#2
Dragon_191 Member Join Date: Aug 2001 Location: ACT Posts: 257	Alot of enterprise SAS drives are dual port for redundancy and are connected to 2 different SAS controllers incase a controller fails. You can also get dual port SATA disks.

10th September 2009, 10:07 PM	#3
MetalPhreak Member Join Date: Apr 2007 Location: Perth Posts: 1,735	Uhh I don't think there are any dual port SATA drives (dual ports isn't part of the sata spec). There are nearline SAS drives, which are basically normal 7200rpm desktop drives with SAS controllers. But yeah, everything else he said is spot on. Its for redundant controllers/cable pathways.

11th September 2009, 3:42 PM	#6
MetalPhreak Member Join Date: Apr 2007 Location: Perth Posts: 1,735	Weird. I've never seen those before. Seems to be only IBM who makes them. Are you sure they aren't just mislabeled SAS nearline drives?