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Questions tagged [sas]

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.

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Cloning old RHEL 4.3 on Dell Poweredge 2850 to PE2950 with SAS PERC6i

I have a Dell PowerEdge 2850 with a PERC 4 controller and SCSI drives. I need to clone that to a PE2950 with a PERC6i with SAS drives. I've used the DKMS package along with the latest driver on Dells website to create a driver disk and…
oneodd1
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ASUS PIKE 6480 doesn't work with debian?

I have DIYed an 1U server with [ASUS Z8NA-D6] motherboard, PIKE 6480 extended RAID card, and four SAS hard disk. And I can find this extended card's module in the linux kernel called mvsas. But fail to be detected by the debian system in the…
ruohanc
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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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Which SAS Cable is required for to connect SAS drive to RAID controller

I have two 2.5" SAS drives which have a SFF-8482 connector. I also have an LSI 9211-8i controller card, as well as a TYAN motherboard with a SAS controller. Both of these controllers use the SFF-8087 mini clip. My motherboard comes with several 4…
cmaduro
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Dedicated server - do SAS disks make a noticeable difference?

Possible Duplicate: What are the merits of SAS vs SATA drives? I am running a linux centos dedicated server. Basic specs are a Intel Dual Core Xeon X3065with 2GB ram and 2 x 160GB Sata drivers in RAID1 configuration. The server is used for host a…
JonoB
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HP P411 Storage Controller not recognized during boot

it's me again :( I've asked a question here a few minutes ago ( HP B110i controller not seeing storage array. Any ideas? ) Turns out I was wrong, and there IS a P411 controller built in, I verified by opening up the server. The problem has changed…
Markus
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HP B110i controller not seeing storage array. Any ideas?

We got a new HP ProLiant DL160G6 with internal P410 SAS controller, and an additional B110i SAS controller with external ports that is supposed to connect to the HP Storageworks D2600 Drive Array we got too. The B110i has the battery installed, but…
Markus
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ATTO SAS-attached RAID 5 array performance issues on Server 2003

We have an ATTO R380 SAS RAID controller in a Windows Server 2003 HP DL-160 server with 8 700GB Seagate 7200.12 drives. It's configured as a RAID 5 array. ATTO Config says all drives are healthy and we see consistent drive write/read rates accross…
megagram
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Rule of thumb: SATA for storage & serving static content, SSD/SAS for databases?

The question says it all. But, is it true? Can someone explain what's the differentiating factor here (how one type of disk is better than another for a specific purpose)? (FYI, I've tried searching, and could fine just one article, which was…
user88753
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SSD Performance for PHP?

My programmer just built an application with PHP using Doctrine ORM (will be a high traffic social networking website), and it's very heavy in PHP/Apache and CPU. The queries are wonderfully fast, and MySQL is barely using any CPU, it's just…
Andrew Fashion
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System can't see ServerRAID M1015 virtual drive?

We connected the card to our system and have created a new mirror RAID 1 virtual drive, Now we want to clone our existing single drive to this new virtual drive, but our cloning software Acronis True Image Server doesn't see it. We also don't see…
SyRenity
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Read LUN from dell SAN with a PC on linux

We are currently using a md3000i DELL SAN server with a RAID1. I would like to access the information on one disk from a workstation. The hard disk contains 2 LUN but I can only access the first one. Any ideas how to access the other LUN ? It is…
Dragouf
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Scale a highly transactional SQL server

I’m looking to upgrade one of my site servers. The site currently executes around 20m sql queries a day and this is growing quite fast. Right now IO throughput is a real issue, so my idea is to move various databases onto their own disk pairs. My…
Dave Sumter
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SAS HBA and P2000 SAS controllers speed

I have HP SC08Ge HBAs and P2000 G3 solution (RAID6, 8+2 spare disks) working on XenServer 5.6.0 . What seems to be strange, is the speed - 35MB/s maximum in one VM (Squeeze). Is it normal or I have to investigate some bottleneck or whatever ... I'm…
John
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Best configuration for 6x SAS 10K RPM SAS discs as virtual host

I have an IBM xSeries with 6x SAS 74.8GB 10K discs which I will use as a virtual host (either VKM, Xen or Vmware). What is the suggested best setup of these discs? I have been using raid10, but unsure if this is the best.
mamruoc
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