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 ...

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8
votes
1answer
9k views

How exactly does a SAS SFF-8087 breakout cable work? + RAID/connection questions

Please let me know if my question does not makes any sense as I am not sure if I am interpreting it correctly from my thoughts due to my lack of technical knowledge on this. If I am using a ...
125
votes
6answers
14k views

Are SSD drives as reliable as mechanical drives (2013)?

SSD drives have been around for several years now. But the issue of reliability still comes up. I guess this is a follow up from this question posted 4 years ago, and last updated in 2011. It's now ...
6
votes
1answer
4k views

Do SAS expanders work transparently with SAS controllers?

I'm new to SAS expanders and I'm trying to get things right. I understand that SAS expanders, when used with SAS controllers which supports expanders, allows you to utilise the full capacity of ...
0
votes
1answer
2k views

Error messages in x3550 related to hard drives not detected at bios level

I have an IBM x3550 when I start it I get the following messages: no logical drives found no int 13 drives to support bios not installed I go into diagnostics and I noticed that SCSI ...
1
vote
1answer
256 views

Using both expanders in HP D2700

I am considering purchasing an HP D2700 for use with SSDs (Samsung Pro 840's), for use in realtime playback of high resolution images. The D2700 has two I/O modules (which I assume are the actual SAS ...
1
vote
0answers
83 views

SAS/SCSI Errors in Syslog: Kernel FAILED

I have a Dell 2950 2U rackmount server with 3 146GB SAS drives in a RAID array, running Slackware 10.2 (an old version, I know). Recently I am seeing these errors in my /var/log/syslog repeating very ...
1
vote
2answers
750 views

Will Intel RES2CV360 SAS Port Expander Work With Adaptec 6805 RAID Controller?

Have both the expander and the RAID controller. Hooked everything together according to the docs on-line, but no drivers are seen. Can't tell if this is just a compatibility issue, or perhaps a bad ...
1
vote
0answers
193 views

SAS RAID Card not accepting disks

I have just purchased a Dell 6/IR SAS RAID card for a Dell SC1435 Poweredge Server that I bought a few months ago on eBay. When I got it, the SAS RAID card fitted (a 5/IR) was faulty and it was ...
-1
votes
2answers
114 views

Is it ok to run 15k.6 and 15k.5 SAS disks in a SAN together?

I have a SAN (HP MASA 2012) running seagate Cheetah 15k.6 drives. One has failed and I have a replacement drive that is the same except for it is a 15k.5 drive. Is this ok to run in the SAN? What are ...
0
votes
1answer
616 views

New HDD swap in SAS 6 ir shows it is missing?

SETUP: Dell Poweredge T410 with Windows Server 2003, SAS 6 IR Raid-1. Both the original drives were Dell Certified Seagate Barracudas for enterprise, 250gb. The new HDD is a Seagate Barracuda 500gb, ...
0
votes
1answer
566 views

HP ProLiant DL360 G4p compatibility with external SAS enclosure

I have a ProLiant DL360 G4p and a StorageWorks MSA60. The SmartArray controller currently in the DL360 is a SmartArray 6400. I would like to upgrade it to a controller with external mini SAS so I ...
0
votes
1answer
842 views

HP Proliant DL140 G3 not booting after installing SAS E500 Controller

The controller is an HP Smart Array E500 Controller and the disk array is an HP Smart Array MSA50. I have the bios boot order set to have the internal RAID 1 array as the first boot choice, then the ...
2
votes
2answers
2k views

Hyper-V 2012 and P2000 SAS SAN

Hi I am having major problems setting up a Hyper-V 2012 cluster on a P2000 SAS SAN. Running System Center VMM 2012 SP1 I am unable to see any storage to create my cluster. Has anyone had experienced ...
2
votes
2answers
3k views

Can IBM System x3650 passthrough SAS?

I am looking at the specs and manual for the IBM System x3650. According to the specs a ServeRAID-8k-l hardware RAID comes standard, but there's an option to upgrade to ServeRAID-8k. If I understand ...
2
votes
2answers
2k views

RAID card w/1x mini-SAS connector : how do I physically connect 16 disks?

I'm looking at a MegaRAID SAS 9240-4i Sgl card which has a single X4 Mini-SAS SFF8087 connector. As far as I know, such a connector can be expanded to 4 SATA disks. So, I would know how to connect 4 ...
1
vote
2answers
809 views

No drives showing on LSI 2008 SAS + HP SAS Expander

Followin this guide http://www.servethehome.com/supermicro-x8si6-f-motherboard-review-including-onboard-lsi-sas-2008-controller/ I got myself an RPC 4224 case (They are called Inter-Tech in Europe, ...
29
votes
2answers
7k views

Why are enterprise SAS disk enclosures seemingly so expensive?

I will begin by stating that I do not believe this is a duplicate of Why is business-class storage so expensive?. My question is specifically about SAS drive enclosures, and justifying their expense. ...
0
votes
2answers
456 views

Accessing data on SAS drives if server fails

If my server goes down, how can i access the data on the SAS drives? I don't have another server to plug them into, and even then connecting the drive to a different controller (while keeping the ...
1
vote
1answer
330 views

Can the Intel C600-series SAS controller RAID SATA drives?

(Sorry if this is off-topic - technically this is a home workstation setting, but is regarding mostly-server technology.) I have a GA-X79S-UP5-WIFI motherboard and four ST3000DM001 drives, and the ...
1
vote
1answer
766 views

RAID 10 over RAID 5 when using SSDs

I am considering implementing an iSCSI shared storage array using SATA SSDs instead of the 15k RPM SAS drives we normally purchase. We normally use RAID 10 because of spindle contention with the ...
1
vote
3answers
4k views

Using SATA drives with SAS shared backplane?

Is it possible to use SATA drives when you have a SAS shared backplane to be able to address the drives?
3
votes
1answer
416 views

Mixing 15K rpm SAS with 7.2K rpm SATA on Dell PowerEdge R610

Is it possible to mix 15K rpm SAS with 7.2K rpm SATA on Dell PowerEdge R610 on the same RAID configuration (Raid 5)? Is the SAS' speed going to drop to follow the lowest speed (the SATA speed)? and ...
2
votes
1answer
932 views

Third-party SSD in Proliant g8?

Anyone having success with third-party SATA or SAS drives with Proliant G8's? I know the G7's were flaky and had BIOS issues. We're looking for real-world success stories with particular brands and ...
1
vote
1answer
545 views

Using 2-port LSI 9286-8e card to control 24 SAS HDDs

I would like to rely on a RAID-on-chip solution to control 24 SAS hard drives in a direct-attached environment. How would you approach this to get best bandwidth given that I'd like to spend less ...
-3
votes
2answers
585 views

Connecting a SAS server drive with SATA USB cable + Converter [closed]

I'd like to connect a SAS drive (ST3600057SS) to my computer via a USB SATA cable combined with a SAS to SATA converter. This doesn't work and I would like to know why and if there's any way around ...
2
votes
3answers
3k views

Can I use a Smart Array P410 controller on a HP Proliant DL 180 G5 server?

This link says the HP Proliant DL 180 G5 server only supports Smart Array E200, E500, P400 and P800 controllers. Can I use a Smart Array P410 instead? Currently the server has only the default ...
0
votes
2answers
394 views

HP SAS HDD in an EMC VNX storage?

Would it be possible to use HP SAS 6G DP 300GB 10K SFF drives in an EMC VNX 5100 storage unit, which currently holds EMC 10K SFF drives (these are really Seagate Savvio 10K.5 SFF drives). Generally, ...
0
votes
2answers
512 views

Windows 2012 RTM Dell G1 1950 and MD3000 with a SAS5 controller?

Seems like a June 6th post by Dell states that the RTM version of Windows Server 2012 should have all the necessary drivers for a Dell G1 1950 -> SAS5 -> md3000 setup. Can anybody who's tried this ...
6
votes
1answer
3k views

replace controller, add second controller, or use expander?

I have a Proliant DL380 G6 that I am re-purposing as a Hyper-V host for a new, off-site data center that will host our DR services. The server currently has a P410i controller with the 512MB BBWC ...
7
votes
5answers
986 views

ML350 G5 - upgrade hot swap drives to 6 Gb/s?

I support a non profit. They got an ML350 G5 donated to them and I immediately put it to good use for them :) It came with four HP 300GB 15K SAS drives - and of course, they have all now failed. I ...
2
votes
2answers
525 views

Do SATA disks on an SAS backplane impose cable length limits?

On two Supermicro 847E16-RJBOD1 enclosures, I have trouble accessing SATA disks on the rear backplane with 6gb/s. The only significant difference between rear and front backplanes is total cable ...
1
vote
1answer
1k views

ESX 3i Drive Assertion Fault on otherwise working system

The graphic (below) shows the fault I am seeing in VMWare Infrastructure Client, the drive0 light is also flashing. Not sure why, the other drive lights are green. Can't see any errors in the logs and ...
2
votes
3answers
3k views

PostgreSQL server: 10k RPM SAS or Intel 520 Series SSD drives?

We will be expanding the storage for a PostgreSQL server and one of the things we are considering is using SSDs (Intel 520 Series) instead of rotating discs (10k RPM). Price per GB is comparable and ...
0
votes
1answer
267 views

Connecting HP storageworks to Dell poweredge R720 [closed]

Can HP storageworks 1/8 G2 tape autoloader be connected to a Dell poweredge R720 server?
0
votes
1answer
132 views

Supermicro x8SAX support

Does a Supermicro x8SAX support SAS drives? I looked through the manual but am not seeing where this is mentioned. I want to set up on board raid 1
0
votes
2answers
351 views

Preventing h/w RAID cards from dropping slow JBOD disks

I'm considering buying a used SAS h/w RAID card for externally attaching HDDs to an HP ProLiant I'm setting up. However, I only require RAID functionality on some of the drives. Theoretically it ...
2
votes
2answers
73 views

RAID Controller Link Speed

I was wondering what sequential speed should I expect from a RAID controller that has 1 x MiniSAS 6Gbps port. In the product details -> Data Transfer Rates: Up to 6Gb/s per port Does this MiniSAS ...
-2
votes
3answers
443 views

Why is my drive so full on my Windows 2008 Server

My server is Windows 2008 R2 Standard Server. I have a secondary SAS drive where all my website files are with the following properties: NTFS File System Allow files on this drive to have contents ...
1
vote
2answers
518 views

Are there different kinds of Mini SAS to 4x SATA reverse breakout cables?

I have an RPC-4224 case that has 24 bays with 6 Mini SAS ports. I needed a cable to break out one of them into 4 SATA ports, so I went down to my local Fry's Electronics and bought one. The cable came ...
2
votes
1answer
1k views

HP MDS 600 compatibility questions

I've bought a used HP MDS 600 to use as JBOD to a ZFS filesystem. Originally I just assumed that it was a pretty 'dumb' box and I'd be able to use a SAS card like the 16-port LSI one, and most any ...
1
vote
1answer
121 views

Can I use an HP Smary Array SAS Controller Card In Non-HP Server? [duplicate]

Possible Duplicate: Proliant raid controller in a PC There are a bunch of cheap HP Smart Array SAS controller cards on ebay and I'm wondering if they will work with non HP servers ...
0
votes
1answer
4k views

HP P2000 G3 MSA (SAS) - Configuring 2 Hosts to use the same volume (cluster)

I have got 2 x HP DL360 G7 servers with the sc08 controller cards installed, and dual controller P2000 G3, the cabling is a single cable from each server to the controlelr cards (using SAS port 1 on ...
0
votes
1answer
105 views

External 2.5" enclosure SATA power only [closed]

we have these mini-SAS PCIe SATA III controllers. Mini-SAS enclosures seem to run about $500, but I can use a $10 mini-SAS-to-SATA adapter cable so then all I need is an external enclosure that ...
4
votes
3answers
688 views

What type of SAS/SATA cables do Dell SAS6/iR and SAS5/iR controller cards use?

I'm considering buying a bunch of these to upgrade our servers at work (with SATA drives, not true SAS). We are out of ports to plug disks into, and these cards are decently supported and cheap. The ...
2
votes
1answer
362 views

Does the Intel DX79TO motherboard support x8 devices (SAS HBAs) on PCIe x16 slots?

Context: I have an Intel DX79TO motherboard and a Sun SAS3081E-S/LSI 1060E-S HBA card with a PCIe x8 interface. I plug the HBA into my mobo next to my graphics card, and the HBA power lights ...
3
votes
3answers
2k views

Are all SAS drives hot-swappable?

Can get a 300GB Cheetah 15K SAS 3.5 disk for quite a bit cheaper through another supplier vs. Dell's out-of-warranty depot (for an aging PowerEdge server). Specs are identical, wondering if there's ...
0
votes
2answers
2k views

RHEL5 do not see sas tape library

We have a tape library which is connected to a server by SAS link. Server is running OS Linux. OS doesn't see the tape library in /proc/scsi/scsi . We tried to rescan scsi bus(*1), but it didn't help. ...
3
votes
2answers
1k views

DAS vs SAN storage for serving 2 to 4 nodes

We currently have 4 Linux nodes with local storage, arranged in two active/passive pairs with storage mirrored using DRBD, running virtual machines (actually using Xen Hypervisor) for typical hosting ...
1
vote
1answer
169 views

Do 10m external SAS cables work?

According to the Wikipedia page external SAS cables are specified for up to 10m length. However, I found it pretty hard to actually find places that sell cables of that length. This made me wonder: ...
1
vote
1answer
3k views

What is the max supported number of SATA devices (using cable adapters) on a Dell SAS 6/iR adapter?

I've got a Dell SAS 6/iR PCI-E adapter. I don't have a multiplier backplane. I'm planning on connecting SATA (non SAS) drives. If I buy cable adapters only (ones that split a SAS connector on the card ...