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0
votes
1answer
18 views

KVM: pass-through SATA hot-swap drive?

I have a SATA hot-swap cage in my Linux box. Is it possible to pass-through the SATA disk which is injected in that cage to a KVM guest? I have multiple disks however the SATA port will be always the ...
-1
votes
0answers
20 views

Connecting 3TB SATA drive to SAS board [closed]

I tried connecting a western digital 3TB SATA drive to a SAS board in my HPz800 workstation. However, in the BIOS, only 2TB is detected from the 3TB SATA connected to the SAS board. Is there such a ...
0
votes
0answers
20 views

Prevent frequent (every 20 seconds) SCSI hard disk drive access in 10.7? [migrated]

In a Lion Server (10.7.3 and 10.7.4 tried) system with multiple drives attached to an HPT SATA controller, there is some process that keeps accessing the hard disk drives exactly every 20 seconds. As ...
0
votes
0answers
49 views

High io usage and server hang

I have 3 dedicated server all with software raid-1 sata, centos or cloudlinux and cpanel. To all of them the last 10 days or so during cpanel incremental backup server has high io usage and hangs out. ...
4
votes
2answers
77 views

Dell MD1000 and an x4 SAS connector throughput / layout

I'm trying to get my head around how a multi lane x4 SAS connector works in a DAS system such as the Dell MD1000. I understand that each lane is 3Gbps, and that multiple hard drives can share a lane. ...
2
votes
2answers
146 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; ...
1
vote
0answers
26 views

3ware 8506, Solaris (Nexenta Core) and the tw driver: driver (tw) successfully added to system but failed to attach

I've got a little Nexenta Core box at home that's doing NAS duties. Recently, I bought a second hand 3ware 8506 12-port SATA controller to go with the Supermicro AOC-SAT2-MV8 controller that I already ...
2
votes
4answers
263 views

HP D2700 enclosure and SSDs. Will any SSD work?

I've got an HP D2700 enclosure that I'm looking to shove some 2.5" SSD drives in. Looking at the prices of HP's SSD drives vs something like an Intel 710 and even something less 'enterprisey', there's ...
1
vote
1answer
147 views

Is current SATA 6 gb/s equipment simply unreliable?

I have a 45-disk array of Seagate Barracuda 3 TB ST3000DM001 (yes these are desktop drives I'm aware of that) in a Supermicro sc847 JBOD, connected via LSI 9285. I have found a solution for the ...
-2
votes
2answers
79 views

How to connect SCA-2 to SATA? [closed]

I have SCA-2 hard drive with connector like this: http://www.ivoryegg.com/imagesNew/150000/154608--659238-7378.jpg It's possible to connect it to motherboard with SATA? Thanks!
0
votes
1answer
64 views

Difference between LSI SAS3081E-R vs. LSI SAS3081E-S SAS/ATA HBAs

I'm trying to figure out if there are any differences between the "R" vs. the "S" of this SAS controller. As far as I can tell, the "S" is a Sun Microsystems re-branded version. I can't find much ...
0
votes
2answers
56 views

RAID 1, mixed size drives?

Hi I have a couple of windows systems that I wanted to install RAID 1 onto, I have purchased PCI express controller cards and extra drives, but here I made a mistake, one PC has an existing 3.5" 160Gb ...
9
votes
3answers
159 views

Any experience with SATA SAS Interposer Cards?

Driven by the current price difference between SATA and SAS disks on one side and the potentially bad behaviour of SATA disks in bigger storage arrays on the other side, I have found so-called ...
3
votes
1answer
108 views

Can I mix SAS and SATA2 drives on one controller?

I've read here that I can't mix SAS and SATA2 drives on the same controller - is that really true? I understand I shouldn't mix on the same channel, but the same card!? For example, when I plug my ...
1
vote
2answers
254 views

How to access to install/check software on a ESXi 5 to view system hardware

I have the following: 2 x DL585 G1 (8 cores) with built in Smart Array 5i (4 x 74GB SCSI in Raid 5) I installed VMware ESXi 5 and got it all working :) When I boot my server up, it states the ...
-1
votes
2answers
222 views

Dell R510 backplane/LSI RAID card

I've been tasked to price up and order a new server. My plans are for a Dell Poweredge R510 with the 8 HDD option, an LSI 9265-8i RAID card, two Dell 600GB 15k 3.5" SAS drives in RAID 1, and six Intel ...
3
votes
1answer
99 views

SSD in early 2008 Xserve Apple Drive Module

Pretty much the title: it possible to use a modern, 2.5″ SSD in an Apple Drive Module on a early 2008 Xserve? This would be replacing a 15k RPM SAS drive, and in most places I've looked that HDD is ...
-1
votes
1answer
89 views

Database server is better to have SAS than SATA, also preferable RAID1?

I want to know if it's better to hast DB server by SAS hard disk than SATA hard disk? And it's also better to use RAID1. I don't know much about RAID. If the server is RAID6 default. Can I change ...
2
votes
1answer
51 views

Apple tower Server internal SATA to external eSATA - good or bad idea?

I am running out of available ports on an Apple server. I would like to attach 4 external eSATA devices to the currently open internal SATA connections (2 open hard drive bays and 2 SATA allocated for ...
1
vote
1answer
95 views

How to connect drive array to redundant motherboards?

How should one connect a small storage array, four 3TB SATA drives for now, to two motherboards or controllers as a failover system? This means avoiding adding another single point of failure such as ...
0
votes
1answer
109 views

Dedicated server - do SAS disks make a noticeable difference? [closed]

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 ...
1
vote
1answer
124 views

Connecting 8 x 500GB SATA drives to HP Smart Array P800 controller on 2 external mini ports

I have already 8 drives hooked up the the P800 RAID controller internally. I would like to attach 8 more SATA drives externally. I looked in the documentation but the only thing mentioned for the ...
3
votes
1answer
188 views

Installed 2TB disk in ubuntu server, dmesg reports it as 9444732965540666 MB

I've have an ageing Linux server running on Dell PowerEdge hardware, with a SAS 5IR RAID controller. It has a pair of SAS 146Gb disks in a RAID 1 configuration that has the OS and other software. I ...
0
votes
1answer
85 views

configuration for max read throughput on ssd: pcie vs sata vs raid

I'm looking to configure a storage setup, using ssd's, that will deliver the fastest read throughput on large (2+ GB) files on a 24 core (12 physical core) system. The data is static for the most ...
1
vote
1answer
44 views

Mirrored HDD on Windows 2000 Server become invalid on Windows 7

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 ...
6
votes
3answers
354 views

“zpool replace” hangs and locks up the pool

Given my four disk RAIDZ1, one disk has become physically noisy, not producing errors yet, but not sounding healthy either. So I've chosen to pre-emptively replace it. I have done: zpool offline ...
1
vote
2answers
99 views

SATA RAID or SCSI RAID Old IBM Server

Need your help on this one. One of my SCSI HD failed in RAID 1, thinking about replacing it, but can no longer find 73gb drive on the market (only used available). Option 1: Clone remaining SCSI HD ...
1
vote
3answers
163 views

So you really can push a SATA2 disk into a SAS backplane?

There's only one SAS, right? Serial attached SCSI? The female connectors: SATA2 looks like: ------------| |------- And SAS looks : ------------+-+------- For me, the SATA2 male connector looks ...
0
votes
2answers
51 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
1answer
88 views

How can I locally analyze SMART logs from a server?

I have Ubuntu 10.04 server running on a desktop at home. I rebooted, and the machine was unreachable after 10 minutes or so. At this point I should have connected a console (monitor using VGA cable). ...
6
votes
4answers
150 views

Best performance: 1tb vs larger drives in app using only sequential read/writes

I have a custom app that is multi-threaded; each thread runs on its own logical core (the workstation is a dual xeon, with 12 physical and 24 logical cores). So there are 24 threads running ...
0
votes
2answers
202 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, ...
0
votes
1answer
256 views

Need advice on which PCI SATA Controller Card to Purchase [closed]

I have a major issue with the build of a machine I am trying to get up and running. My goal is to create a file server that will service the needs of my software development, personal media storage ...
0
votes
1answer
77 views

PCI SATA Controller Card Locking Up at Boot

So I have the following setup - ASUS M2N4-SLI Motherboard with AMD Chip of some kind with 4 GB Dims 2 CD/DVD ROM Drives 1 320 GB SATA Drive containing the CentOS Operating System and 2 250 GB SATA ...
37
votes
8answers
1k 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
3answers
152 views

SATA Raid 10 vs SAS Raid 1

I need to setup a small dedi for a few VPS. Obviously the more IO, the merrier. Given these condition, what would you choose? 2 SAS 15k disks in Raid1, or 4 SATA 7.2k in raid 10? Would the answer ...
1
vote
1answer
47 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 ...
0
votes
1answer
57 views

Running Ubuntu off a USB drive?

I was wondering if a USB 2.0 Thumb drive has enough bandwidth to act as a primary system drive in an Ubuntu Linux server. More specifically an SAN server. I am running an iSCSI target, ZFS and ...
2
votes
2answers
314 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 ...
0
votes
0answers
118 views

Switching from RAID Card attached JBOD to SATA connected disk?

We have a FreeBSD storage server, listing the specs: Server1: 3Ware 9500S-12 RAID Card 12 x WD20EARS (2TB WD Caviar Green) SATA Disks connected to it via JBOD export (Not as single units due to the ...
0
votes
2answers
209 views

1 TB SATA HDD on a Dell Poweredge sc1420?

Can anyone tell me if I can use an standard 1 TB SATA HDD on a Dell Poweredge SC1420? Let's say this one: http://www.compusa.com/applications/SearchTools/item-details.asp?EdpNo=61389&CatId=2459 ...
1
vote
1answer
204 views

Replacing a PERC S300

The PERC S300 card that came with our Dell PowerEdge T110 servers is Windows only (see here). As a result, we're looking for an alternative that works under Linux. We had planned to use software RAID ...
2
votes
1answer
102 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. ...
0
votes
0answers
78 views

RAID10 degrading error in BIOS

Having a big problem setting up RAID 10 on a barebone server. I have (4) 2TB hard-drive. I am using a AMCC/3Ware 9550SX-4LP SATA2 RAID Controller. I am setting up a RAID 10. In the BOIS it listed all ...
0
votes
1answer
272 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
3answers
153 views

RAID - Multiple drives on one channel

I plan on building my first real RAID server soon. My idea is to have 8 to 12 hard drivers in RAID 5 or 50. It will serve as a storage server. I would prefer to have real hardware RAID. When looking ...
3
votes
6answers
905 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 ...
2
votes
4answers
2k 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 ...
12
votes
5answers
2k views

Anyone seen a meaningful SAS vs SATA comparison/benchmark?

I hear lots about SATA being slower than SAS but I've only found 1 decent benchmark. http://blog.whitesites.com/SAS-RAID-0-VS-SCSI-RAID-0-VS-SATA-Benchmarks__633689244191943184_blog.htm In this, SAS ...
0
votes
1answer
134 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 ...

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