Questions tagged [sata]
Serial ATA (SATA or Serial Advanced Technology Attachment) is a computer bus interface for connecting host bus adapters to mass storage devices such as hard disk drives and optical drives. Serial ATA was designed to replace the older ATA (AT Attachment) standard (also known as EIDE), offering many advantages over the older parallel ATA (PATA) interface.
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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 ...
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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 our ...
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How do I make Linux recognize a new SATA /dev/sda drive I hot swapped in without rebooting?
Hot swapping out a failed SATA /dev/sda drive worked fine, but when I went to swap in a new drive, it wasn't recognized:
[root@fs-2 ~]# tail -18 /var/log/messages
May 5 16:54:35 fs-2 kernel: ata1: ...
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What are the merits of SAS vs SATA drives? [closed]
What are the merits of buying SAS drives over SATA drives, or vice versa?
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In which order do I plug the SATA power and data cables for hotplug?
I’ve found diverging instructions on the ’net about this.
To recap: SATA with the 4-pin Molex (white) power plug is not hot-pluggable, but either the wide connector or the separate (15-pin power and ...
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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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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 ...
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How to unlock an SSD disk with hdparm?
I have an SSD disk with password protection, but the password was lost long time ago... so I tried to erase the ATA security with the hdparm command.
With "hdparm -I", the disk information ...
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Performance Difference SAS vs. SATA?
Can not find that anywhere it seems.
What is the expected performance difference in a storage backend scenario that is heavily parallellized in access (like a SAN, Virtualization host storage etc.) ...
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What kind of SATA connector is this?
My Supermicro motherboard has a "vertical S-SATA connector". The manual simply says "A vertical S-SATA connector, offers four S-SATA 3.0 connections (S-SATA 0-3)". I took a picture of it and it ...
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SAS vs Near-line SAS vs SATA
I'm unsure about the differences in these storage interfaces. My Dell servers all have SAS RAID controllers in them and they seem to be cross-compatible to an extent.
The Ultra-320 SCSI RAID ...
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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 ...
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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 ...
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SATA Disks that handle write caching properly?
It's pretty common to see advice to disable the write cache on individual disks used for databases because otherwise some disks will acknowledge writes that haven't yet made it to the disk surface.
...
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Deciphering continuing mpt2sas syslog messages
Summary
I have been getting these cryptic messages in syslog since I installed some new hardware and I can't figure out what the problem is, if it's serious, or what to do about it.
They're from the ...
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Faulty SATA disk but with a periodic error?
I have a Seagate St2000dm001 2TB Barracuda Sata3 disk that is producing errors similar to this :
[Tue Jun 14 10:02:06 2022] ata2.00: exception Emask 0x0 SAct 0x1 SErr 0x0 action 0x6 frozen
[Tue Jun 14 ...
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scsi and ata entries for same hard drive under /dev/disk/by-id
I am trying to set up a ZFS pool using 4 bare drives which I have attached to my Ubuntu system via a SATA hot swap backplane.
These are Hitachi SATA drives. When I list the contents of /dev/disk/by-...
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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 ...
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Are SATA 1, 2 and 3 cables interchangeable?
I've got an older SATA drive (not sure if it's SATA 1 or 2). Same size plug as my new SATA 3 M/B.
Are the cables interchangeable?
Any decrease in performance from using a "lower" cable?
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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 SATA-to-...
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SCSI vs SATA? Is SCSI "actually" better? [closed]
Well, I was talking with a guy about servers the other day. I was a bit shocked whenever I asked him if there was any significant difference between SCSI and SATA and why he always uses SCSI. (note, I'...
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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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SATA drives in HP ProLiant server?
Does anyone know if I can install normal 2.5" SATA drives inside an HP DL360 G5 server? Right now it has 6 72GB SAS drives. I am looking for raw storage for my files SAS performance in not required.
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ssd firmware, linux: updating large batch of drives
I was recently hit with a fatal firmware bug that affected dozens of Crucial SSDs deployed in my datacenter. Many of the affected machines use LSI or other proprietary SAS controllers, which Crucial's ...
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What is a SSATA port? [closed]
I bought an ASUS ZPE10-D16 motherboard for a server I'm building. The manual describes two banks of SATA ports; a group of four it calls SSATA, instead of just SATA ports. I'm wondering if there's ...
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S-SATA Vs I-SATA (PCH, SCU)
My mother board contains SATA-3 ports however some are listed as S-SATA and I-SATA as shown in the manual:
I have plugged some harddrives in each of these ports and they both work fine. However I ...
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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 ...
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Can we upgrade Dell's basic Server R240 (which still uses HDD 7200RPM) to an SSD?
Today I was shopping for the most basic dell rack server which is the R240.
Ironically, they are still using HDD 7200 RPM, with no option for SSD in their selection; and we're approaching 2020!
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hard resetting link exception Emask 0x50 SAct 0x0 SErr 0x4090800 action 0xe frozen
Following situation:
A productive linux debian 7 server with kernel
3.2.0-4-amd64 #1 SMP Debian 3.2.68-1+deb7u2 x86_64 GNU/Linux
Manufacturer: Supermicro
Product Name: X10SLL-F
Version: 1.02
SATA ...
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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 ...
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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 ...
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find out if disk is IDE or SATA
I need to find out if a disk is IDE or SATA (or anything else, maybe). I know that the device is /dev/sda, so I think it's SATA, but I don't know if I can be sure just by the name. I tried looking at ...
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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 ...
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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 ...
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Can SAS drives be used with SATA controllers?
Can I buy SAS drives on my SATA Controller?
What is the compatibility and restrictions about mixing these?
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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 ...
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Smart Array P410i with SATA SSD drives unstable
I have a HP Proliant DL380 G7 with said array controller and 6 INTEL SSDSC2KW4's, set up in Raid 5.
Normally I have never had problems with SATA drives in servers, but this one has me baffled.
I ...
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"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 ...
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SAS / SATA max number of connected disks vs performance
I would like to understand following things:
When I have a motherboard with SATA 6Gb/s and 8 ports, does it mean that every single port is able to provide 6Gb/s speed to disk that is connected over ...
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HP ProLiant DL380 G4 SATA support? [closed]
I'm planning to get a second hand HP Proliant DL380 G4 and setup it as storage server, probably using NexentaStor and setup a ZFS system.
But now I wonder does DL380 G4 can be convert or support SATA ...
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3Gbps SSDs in RAID1 VS 6Gbps SAS Drives in RAID1 - Performance Difference?
I have bought two Intel DC S4500 480 SSDs (comes with 5 year warranty) to use with a HP G7 DL360 1U Server in RAID1. Unfortunately after purchasing the disks, I figured out that the integrated P410i ...
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How do you connect more than 4 drives to a LSI 9361-4i MegaRAID controller?
I’m fairly new to proper hardware RAID having only used it in pre-built server machines before, but on the recommendation of some friends who work for datacentres I’ve bought an LSI 9361-4i MegaRAID ...
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ProLiant DL380p not recognising HP hard drives on boot
I have two ProLiant DL380p rack mounted small factor servers. I have installed the following drives onto both servers:
1x 240GB SSD drive (Crucial NOT HP branded)
2.5" SATA 7.2k rpm 1TB (HP-branded) ...
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raid controller data transfer rate
I'm going to buy an 8-port raid controller for which the declared data trasfer rate is "Up to 6Gb/s per port".
The declared connectors are "Two mini-SAS SFF8088".
The maximum number of supported ...
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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. ...
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Making SATA disk write cache safe
Supposedly (see, e.g., a question about it here), with NCQ enabled drives, the drive write cache is supposed to be safe, as in it doesn't lie to the OS about data being committed to the platters when ...
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What is a maximum useful length of a 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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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 ...
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PCIe SATA III RAID controller card Linux setup
I recently added a StarTech 4 port PCIe SATA card to a Linux server. The card is connected via SFF-8087 to a Norco 4224 backplane and 4 new hard drives that I'd like to configure into a new software ...
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