0
votes
1answer
74 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 ...
3
votes
1answer
213 views

Using consumer grade hard drives in a server

My company needs to upgrade a couple of (very) old servers we are currently running, but we are kinda strapped for cash. We got a great offer on a pair of HP DL360 G6 servers, but the hard drive cost ...
-1
votes
1answer
94 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 ...
5
votes
1answer
819 views

Is there way to read sectors from SATA drive without ECC correction?

I know, there was such possibility like that in old ATA standards: "READ LONG" command produced LBA sector + ECC payload. sg_read_long supports in in linux, but the command is obsolete for quite a ...
2
votes
3answers
2k views

How to reduce the SATA link speed of drive in CentOS?

How do I make CentOS run SATA drives at 3Gb/s at boot? Background: I'm having an issue with a motherboard that claims to support 6Gb/s SATA transfer speeds, but when using 4 drives on it, in a ...
4
votes
3answers
3k views

HP Proliant DL180 G5 server treats 3-TB SATA disks as 750-GB ones

I have this HP Proliant DL180 G5 server, running with the embedded RAID controller (no Smart Array); with this configuration, it only supports 4 SATA disks. Fine. The server has 2 250-GB SATA disks; ...
0
votes
1answer
176 views

Mirrored HDD on Windows 2000 Server become invalid on Windows 7 [closed]

I have a situation: I had two SATA HDD, on mirror (soft mirrow by Windows), on Windows 2000 Advanced Server x86 then I remove it, throw away the server and keep the disk. Now I want some data on ...
0
votes
2answers
173 views

Windows Server making hard disk accessible after moving to a new installation

I have a serial ata disk running windows server 2003 in an old setup and now our company wanted to upgrade the system. We got a new computer and I transfer the hard disk from one setup to the other. ...
0
votes
2answers
508 views

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, ...
61
votes
8answers
5k views

How can a single disk in a hardware SATA RAID-10 array bring the entire array to a screeching halt?

Prelude: I'm a code-monkey that's increasingly taken on SysAdmin duties for my small company. My code is our product, and increasingly we provide the same app as SaaS. About 18 months ago I moved ...
1
vote
1answer
92 views

What speed are the internal drives in a PowerEdge R515

Not much obvious information on the net on this one - in fact, it was a surprise to me that the 12-bay R515 even had internal 2.5" cabled drives. We're considering sticking in a couple of high-speed ...
2
votes
2answers
569 views

SAS drive to SAS/SATA backplane then SATA cables to SAS/SATA RAID card?

I just got a Supermicro chasis: http://www.newegg.com/Product/Product.aspx?Item=N82E16816101241 That has a backplane that supports SAS and SATA drives but the backplane has SATA ports to be ...
3
votes
1answer
243 views

“Transparent” SATA RAID Controllers [closed]

I'm looking for a true hardware SATA RAID controller that can do levels 0, 1, and 5 and is, for a lack of a better term, "transparent" to the OS in that it requires no software drivers whatsoever. ...
1
vote
1answer
890 views

How to enable SATA in Centos 5?

I have a centos 5 linux box which is currently running off an IDE drive. I want to install a couple of SATA drives as backup drives for now. I have googled that there can be complications with SATA ...
4
votes
6answers
4k views

Use of 2.5" Laptop Drives in a Server?

We're acquiring several 1U servers with (8) 2.5" drive slots. Although we can use either SATA or SAS, there is a large price variance as soon as you order 16 or 24 of these drives, so we are looking ...
6
votes
5answers
7k views

SAS or SATA for 3 TB drives?

We are looking to purchase new 3 TB enterprise-grade drives and can buy either SAS or SATA models. AFAIK, SAS generally gives better performance than SATA, but searching for benchmarks I found ...
0
votes
1answer
322 views

What can I do about the 2 SATA harddrives no longer showing up even in BIOS?

I've been trying to setup Ubuntu but have been running into countless issues. Both the 500GB drives has now become undetectable and don't even show up in BIOS. I've detailed below the process I've ...
1
vote
1answer
847 views

Raid Ready Hard Drive vs Standard Hard drives

What is the difference between normal data hard drives and Raid Ready Hard Drives? I am planning to build a server with 6x2TB hard drives and i have been quoted raid ready Hard drives nearly at 250$ ...
3
votes
5answers
2k views

Which hard drive corresponds to ata1.00 and ata12.00?

I have an Ubuntu installation which has a lot of hard drives. Two of these drives have hiccups and SMART is reporting errors. However, I cannot figure out how to determine which drive is ata1.00 and ...
0
votes
1answer
418 views

Failing Sata HDD

I think my HDD is fried... Could someone confirm or help me restore it? I was using Hardware RAID 1 Configuration [2 x 160GB SATA HDD] on a CentOS 4 Installation. All of a sudden I started seeing bad ...
8
votes
3answers
27k views

SAS vs. Nearline/MDL SAS - What is the difference?

As subject I guess, looking at SAN's and most vendors offer 10k or 15k "proper" SAS drives, many also offer 7.2k MDL/Nearline SAS drives. Does anyone have an authoritative explanation of the ...
1
vote
6answers
10k views

Persistent problem with losing SATA harddiscs after weeks/months of uptime

I've got a problem that has been keeping me somewhat busy for about a year. In random intervals, sata harddiscs simply get lost after several unsuccessful hard resets. This is not related with thermal ...
3
votes
1answer
148 views

Large SATA hard drive for Intellistation A Pro 6217

I posted this question to the IBM forums, but got no response! I'm hoping someone here will be able to help. I have recently become the lucky new owner of an Intellistation A Pro 6217. I would like ...
0
votes
1answer
75 views

Can I use an EIDE ATA-133 hard drive in a server that uses SATA?

I have an old 160 GB EIDE ATA-133 hard drive, which I would like to use in my Dell PowerEdge T105 server. However, the cables inside the T105 are SATA, which won't connect to the drive. Is there ...
1
vote
3answers
5k views

Mapping raw storage devices to VMs in XenServer 5.6?

In VMware ESXi, we can easily present a raw SATA hard drive to a virtual machine through Raw device mapping. Is it possible in the free edition of XenServer 5.6?
0
votes
4answers
6k views

SATA hdd errors

I have one server with WDC WD3202ABYS ... There are 100 virtual hosts. Server is working about 5 years and in this time period I have change 4 disks. All with same reason: sata error. The last one: ...
1
vote
1answer
181 views

Win2003 R2 - 1.5TB disks not identified

I just installed 4 1.5TB hard disks (WD) in two servers (2 in each). Upon reboot they are not showing up in the disk manager whatsoever. I'm running Windows Server 2003 EE (32bit) with 8GB ram. They ...
2
votes
1answer
357 views

What is the value/cost of enabling “spread spectrum clocking” on my hard drives?

I'm building up a biggish NAS box (10x WD RE4 2TB SATA RAID10) and ran into some problems. During the course of my research, debugging, investigations, etc, I discovered a jumper on the physical ...
5
votes
3answers
2k views

Problem with slow hard disk

We bought some new PCs in my company with the new iCore 7 and 8GB memory and the following hard disk: WESTERN DIGITAL WD8000AARS 800GB CAVIAR GREEN SATA2 The problem we have is that after installing ...
2
votes
5answers
4k views

What is the best hard drive type for a small file server?

I have a fairly speedy computer that I'd like to use as a file server. The motherboard has IDE and SCSI ports. What is the best hard drive type to use? (IDE/SATA/SCSI, etc) Would it be smart to get ...
2
votes
2answers
245 views

Remove second RAID6 drive during resync from first failure?

I have a RAID6 comprised of five 1TB drives in good working order. I'd like to redistribute the array differently in my system (change the drive distribution over controller cards). I pulled the first ...
3
votes
5answers
4k views

SATA Drive Replacement on Dell PowerEdge R410

I just talked to our Dell rep about purchasing some PowerEdge R410s and R510s and he made a comment that the SATA drives are 'special' and can't be replaced by aftermarket drives because of some ...
0
votes
3answers
142 views

Adding a 2nd Hard drive causing intermittent restart on server

I'm in the middle of configuring a server with circa 6tb storage. I've got 8x 1TB drives, using a 3ware RAID card (9650SE) The server also (currently) has 1 additional 250gb SATA drive, with the OS ...
1
vote
5answers
3k views

Why can't I see my new harddrive on my Ubuntu box?

I installed my new drive and put Ubuntu server on it. It was working fine except ubuntu server was a bit to raw for me. So, then I decided to go back to my old drive and use the new drive as a second ...
4
votes
4answers
4k views

How much impact does hard drive cache have on IO performance

How much impact does hard drive cache have on IO performance Are there any statistics or performance tests available that can tell me if there is a difference is 16MB vs 32MB Cache? If it matters, I ...
1
vote
2answers
2k views

Data Recovery on faulty sata drive that is not being properly detected in Windows

My computer is configured with two sata HDDs. The primary one crashed the other day and now I am trying to recover the data that is on it. I've plugged the faulty HDD into a machine where the primary ...
3
votes
8answers
924 views

Getting data out of a non-working SATA drive

Can anything be done to get data out of a dead SATA drive, the drive won't even show up on the list of drives when booting the computer? UPDATE: The drive was never backed-up. It was an external ...
4
votes
4answers
435 views

Can any hard drive of the same format be put into a hot-swap tray?

I'm looking at buying a hot-swap NAS that supports SATA/SATA II hard drives. Can I get any SATA drive and put it into the hot-swap trays it comes with, or will I need to find a certain kind of drive? ...
40
votes
3answers
47k views

What are the merits of SAS vs SATA drives? [closed]

What are the merits of buying SAS drives over SATA drives, or vice versa?
9
votes
2answers
3k views

Is sata 2 backwards compatible with sata 1

Simple question, Is SATA 2 compatible with SATA 1.