Serial Attached SCSI (SAS) is a computer bus used to move data to and from computer storage devices such as hard drives and tape drives. SAS depends on a point-to-point serial protocol that replaces the parallel SCSI bus technology that first appeared in the mid 1980s in data centers and workstations, and it uses the standard SCSI command set.
Questions tagged [sas]
521 questions
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2 answers
Are 6Gb/s SAS drives compatible with 3Gb/s SAS interfaces?
Are SAS 3Gb/s controllers (SAS1) forward compatible with newer SAS2 drives specified at 6Gb/s? The controller I have in mind is an LSI SAS1064. I know that SAS2 controllers are backwards compatible with SAS devices. I found some information in this…
Ryan
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1 answer
SAS / SAS2..... compatible?
Is it theoretically possible to mix a SAS2 controller with a SAS expander?
We just happen to have this scenario - the expander (which works fine with an older SAS adaptec controller) is not found and Adaptec (which handle the new 71605Q raid…
TomTom
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How to connect a SAS expander like RES2SV240?
I'm afraid this is going to be a very noob question, sorry.
I am looking at the RES2SV240 card from Intel. I have never used SAS or an expander, and I'm a bit confused about how it works.
First, the description on their website says the card has 8…
Patrick
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Multiple SAS inputs from single raid controller into expander backplane
Hello I have recently purchased a mixture of off-lease server equipment which I will be building a server for my office utilizing this equipment for business use. Some of the items I have purchased that will relate to this question…
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NFS SATA vs SAS for VMware datastore?
Lately I have been seeing people online and their followers making NFS servers with SATA SSDs for VMware Datastores. This enraged me! SATA is half duplex and SAS is full. A 15k SAS at 6Gbs with a 6Gbps raid card would blow away a SATA SSD when the…
SmarterThanYou
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SAS-2 6Gbps Maximum Disk Capacity
So I think this should be a simple enough question but my google-fu is not turning up an answer.
I am wondering what the maximum size a single physical disk can be under the SAS-2 6Gbps spec. I remember from past experience that a SAS-1 controller…
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Understanding SAS transfer speeds
I've been tasked with building some large storage and i'm first working to expand my SAS knowledge. As i consider transfer bottlenecks and SAS speeds, i can't help but wonder how 12 Gb/s SAS equates to 4800 MB/s of transfer. From a pure conversion…
ngX55
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SAS HBA card or integrated with MB?
I need an entry level virtualization server for a few people and I like the Fujitsu line of this kind, but they all seem to have built-in SATA disk interfaces.. I'd like to use SAS disk and apparently there are some SAS interface cards I could use…
LetMeSOThat4U
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Recovery from SAS Harddrive
Possible Duplicate:
What are the different widely used RAID levels and when should I consider them?
I have 6 SAS Harddrive configured on RAID 0. One of my SAS Harddrive has gone faulty, So the server is not working. I tried installing windows…
Ramesh Barad
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What is the difference between SFF-8482 and SFF-8082 connectors?
A popular way to connect SAS hard drives to a SAS card having SFF-8087 sockets is to use a SFF-8087 to SFF-8482 cable.
One can also find on the market SFF-8087 to SFF-8082 cables, but I could find almost no documentation about the SFF-8082 connector…
OuzoPower
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Proliant DL380 Gen10 health led red
I have a Proliant DL380 Gen10 server with 4 SAS disks. I replaced one of the disks.
Unfortunately during that time, a colleague of mine removed another sas disk, which should not be removed (white symbol).
Now the health LED is flashing red.
Does…
Roxas13
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