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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160 views

Connecting SAS drives to Server which supports only SATA

Is there any adapter or connector available to connect a SAS drive to a Server having motherboard which supports only SATA drives. It is ok if can connect it for temporary. I need to transfer some ...
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1answer
140 views

Connecting SATA 3 to SAS port performance analysis

SATA 3 hard disk can be connected to SAS ports. But If i connect SATA 3 drive to a SAS port then can i get same speed as SATA 3 originally offers or will it be a difference? Will it reduce the ...
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1answer
229 views

SAS IT Mode controllers and SAS Expanders

Lots of semi-related posts, but none that address this scenario. I picked up an LSI SAS1064E-IR based HP Controller. I flashed it with an -IT firmware, and things look somewhat ok. Except that I ...
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1answer
117 views

Can disk be purchased by user from vender other than Dell and add to Dell PowerEdge R720xd server after the server is purchased?

The following is the price of the 4TB NL-SAS drive offered by Dell for PowerEdge 720xd. 4TB 7.2K RPM Near-Line SAS 6Gbps 3.5in Hot-plug Hard Drive [$663.38] It seems to be too expensive. A similar ...
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1answer
171 views

Dell H310 RAID controller in PowerEdge 2950 III

Is anyone able to confirm whether the Dell H310 RAID controller will happily live in a PowerEdge 2950 III? It's a PCI Express 2.0 8x card. I see reports of the H700 in the 2950, which is the same ...
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1answer
128 views

Beginner SAS and SAS2 speed expectations

We have one SAS backplane, without SAS expander, with 8 HDDs and we connect it to the motherboard with 2 SFF-8087 to 4 sas/sata cables. The motherboard supports SAS2 and the SSD supports SAS2. How ...
2
votes
1answer
141 views

Rack Storage - Backplane with 20 SATA connectors or backplane with 5 Mini SAS connectors?

I am comparing two rackmount server chassis (Norco RPC-4220 and Norco RPC-4020, FWIW), which are identical except for the backplane connectors. One has 20 SATA connectors and the other has 5 Mini SAS ...
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1answer
410 views

Format SAS drives HP DL360G6

hoping you can point me in the right direction here. I scored an older HP DL 360G6 and have been having issues installing ESXi. After a bit of searching around a few people suggested completely ...
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1answer
307 views

ZFS: SAS v SATA - does it matter?

I understand from NEC's white paper, Silent data corruption in disk arrays, that: some SAS drives should have a "T10-DIF" feature to detect silent data corruption; whereas "There is no standard for ...
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2answers
176 views

High density disk bay rack chassis - why such a big difference in price?

We're looking for a chassis with 45-60 bays for SAS/SATA disks and we found some 60-bay enclosures at ~ $11000 (see here and here for example - there are others as well). However we found this one ...
2
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1answer
2k views

What is a maximum useful length of SATA/SAS cable

The server in question is DELL PowerEDGE SC1435. I am thinking about buying a LSI 1068e based card with two internal SFF-8087 ports. I intend to use the machine with external multiple hard disk ...
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1answer
152 views

Which controller for external SAS tape drive

We're about to buy an external LTO-4 tape drive for our HP DL380g6 server, and since SCSI is on the way out, we'll buy a SAS drive, probably the HP StoreEver LTO-4 Ultrium 1760 SAS External Tape Drive ...
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1answer
75 views

IBM ServeRAID 2 channels SCSI controller compatible with IBM x366 server which use SAS onboard?

I own an IBM x360 server in which I have an IBM ServeRAID 2 channels SCSI controller for which I use the two channels. Channel 1: the server's HDD. Channel 2: IBM EXP300 HDD Enclosure. Will this ...
12
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5answers
3k views

ZFS best practices with hardware RAID

If one happens to have some server-grade hardware at ones disposal, is it ever advisable to run ZFS on top of a hardware-based RAID1 or some such? Should one turn off the hardware-based RAID, and run ...
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2answers
87 views

SAS disk error. should I replace my drive ASAP?

When I try to reboot UBUNTU server boot prints that he find "Foreign configuration" on the adapter. When I boot from secondary (/dev/sdc) disk and run fsck it show me some errors on the first disk. ...
2
votes
1answer
169 views

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 ...
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1answer
119 views

SAS SCSI Converter [closed]

I recentely bought a Seagate Cheetah 146GB SAS ST3146755SS 10K Performance 15K RPM Hard Drive from EBAY and do have a computer that supports SAS. The problem is that I need to convert it into a SATA ...
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2answers
195 views

SAS internal cable compatability

In the office, we've elected to whitebox go with a commodity approach to a certain class of server we'll eventually need a lot of. It's time to consider picking up a few more. It has been a year since ...
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1answer
47 views

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 ...
0
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1answer
147 views

AOC-LPZCR2 Equivalent RAID card

We have just had a 'AOC-LPZCR2 Low-Profile All-in-One Zero-Channel RAID card' fail. Unfortunately, we are unable to source one straight away. Does anyone know of an equivalent card which we could use ...
0
votes
1answer
220 views

PCIe SSD vs SSD vs SAS - which is best for Database?

Since I am going on shipping soon I wonder which generally will mostly boost the database performance ? The bridge question is - which will boost mostly a database which having a lot of random block ...
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2answers
2k views

How to use SAS Expander with RAID card?

I've doing some researches since few days and I haven't really got an answer to my question. I am in the process of building a huge file server for the company I work for. We bought a server case ...
0
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1answer
207 views

Software RAID for a petabyte storage array [closed]

I'm trying to build my first personal storage area network (flexible downtime, speed is not a priority) to hit 1 petabyte on a budget, and am considering a modification of the Backblaze pod as the ...
0
votes
1answer
417 views

IBM x3650 M1 SATA support up to 2 Tb

I have an IBM x3650 (M1 [i think because of DDR2 rams]), an as i know it only support SATA hard drvies only up to 1 Tb. Is there any RAID controller firmware/BIOS update which can give the server 2 ...
2
votes
2answers
316 views

What cable do I require for SFF-8087 to SAS

I have a HP P410 and two 2.5" SAS Drives, i want to connect both those SAS drives to one port. I know the cable for the P410 is a SFF-8087 and ive seen plenty of adapters searching, but alot of them ...
2
votes
1answer
4k views

Installing Ubuntu 12.04 on HP Proliant DL380e with 1TB SAS Drive

I have an HP Proliant DL380e with a 1TB SAS Drive and I am trying to install ubuntu server 12.04 on it. I have created a RAID array using Array Controller Utility and had a RAID0 logical volume ...
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1answer
194 views

How does plugging in a SATA drive to an SAS backplane affect maximum cable length?

The limit on SATA cable length is 1m, whereas the limit on SAS cable length is 10m. When using a backplane which advertises support for SAS and SATA, with a SAS RAID controller and one SATA drive, ...
2
votes
1answer
265 views

GNU/Linux: SAS-disk detected as /dev/sg7 - not as /dev/sdb

I have just installed a SAS disk into a Debian server. It was detected correctly and everything was fine. Then I moved the SAS disk to a different Debian server, the same hardware model and running ...
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0answers
270 views

How is the boot order of SAS drives determined?

This probably seems like a simple question, but hear me out. Here's the scenario that caused me to ask this question, as this is not so much a "how to" question but a "why" question: I was trying to ...
0
votes
2answers
284 views

Dell PowerEdge 1950 Drive Bay not showing in SAS Configuration Utility

We have a Dell PowerEdge 1950 in RAID 1. Recently, the drive in Bay 0 began rapidly blinking green (I'm guessing twice per second, indicating "identifying drive"). When I open the SAS ...
3
votes
1answer
382 views

Connecting our first tape drive (SAS) to SATA bus

Our small team is considering buying our first tape drive for backups. However, we are still lacking serious enterprise-grade servers and have to rely temporarily on SATA drives in our rigs. Cost ...
5
votes
1answer
185 views

26 hard drive limit on x86 servers, IBM x3650, Dell PE 2950, Dell PE 2850, where is my limitation?

This is in regard to mass HDD wiping/testing. The software I use, WipeDrive Pro 5 and 7, both fall victim. I originally thought it was a limitation of the software, but after speaking with the ...
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vote
3answers
9k views

HDD: performance differences between 7.2k SATA and 15k SAS

What is the rule of thumb in performance characteristics and differences between 7200rpm (SATA/SAS) and 15000rpm (SAS) hard disc drives of the same generation?
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votes
1answer
94 views

What does a RAID controller do if its conection to a SAS expander is severed? [closed]

When you have a RAID controller managing an array over a large amount of disks in an external chassis with a SAS expander, what happens if someone accidentally powers off the external chassis or ...
2
votes
2answers
347 views

How to use SAS expanders with Adaptec 2405 Raid Card

I have a server with Adaptec 2405 RAID card. I have 4 hard drives attached to it. I want to add 4 more. Adaptec site says 2405 can handle up to 128 hard drives with SAS expanders. It's not clear to me ...
7
votes
1answer
6k 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 ...
6
votes
1answer
3k 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
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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 ...
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1answer
213 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
69 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 ...
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vote
2answers
632 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 ...
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0answers
168 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 ...
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votes
2answers
110 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
526 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, ...
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1answer
483 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 ...
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1answer
711 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
1k 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 ...
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2answers
658 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, ...