Questions about hard disks' performance, issues, tips, and software.

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0
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1answer
7 views

windows rsync from different local drive, other than c, to remote

rsync -avz D:/test me@my.server.com:/test I am using cwrsync on a windows7 box rsyncing to a linux box. Everything works fine when i am going from a relative path on drive C.. but i need to rsync ...
0
votes
2answers
15 views

Wiping hard drives in an IBM DS3512

I have an IBM DS3512 RAID storage device, which I'm planning to sell. How would I reliably wipe my data off of all the hard drives? As far as I can tell, it abstracts away all direct access to the ...
1
vote
2answers
33 views

Buffer I/O error on device (sata drive)

I keep getting these messages in one of my servers kernel logs (which is responsible for file operations). I wonder if anybody knows how serious are these issues. I cannot use smartmontools because ...
-3
votes
1answer
33 views

Can formatting a drive eliminate bit rot? [closed]

I'm aware that bit rot does affect hard disks in consumer and enterprise level magnetic disks. However, my question is although this happens where data corruption can occur, is this actually a ...
1
vote
1answer
202 views

External drive switching from /dev/sda to /dev/sdb

We have a small box with external drives attached for backing up configuration sets. I found out the problem is simply that on reboot or whatever unknown event the drive switches from /dev/sda1 to ...
0
votes
1answer
28 views

Is an HP Proliant 350e Gen8 server appropriate for Primevera and Sage applications? [duplicate]

I want to buy a server to accommodate both the Primevera and Sage applications? Would a HP Proliant 350e Gen8 do? Are there any concerns about this platform?
0
votes
0answers
18 views

SMART output - what's the significance and meaning of “verify” errors from smartctl -a for a HDD

Does anyone know the meaning of "verify" errors listed in the output of smartctl -a (or more precisely smartctl -l error), as well as their significance, if any, in trying to evaluate the health of a ...
1
vote
0answers
37 views

VMware ESXi multiple I/O latency warnings

VMware ESXi 5.1.0 server showing multiple warning events: Device mpx.vmhba1:C0:T0:L0 performance has deteriorated. I/O latency increased from average value of 3913 microseconds to 530954 ...
0
votes
0answers
3 views

Hard drive parameter exceeded its normal operating range [migrated]

I few days ago, I started seeing this message during boot: NOTICE - HD SELF MONITORING SYSTEM has reported that a parameter has exceeded its normal operating range. Dell recommends that you backup ...
1
vote
1answer
23 views

how to add a raw device on RHL

I am using a server to which someone added a harddisk. I am struggling to get this to work. I am a regular Linux user (but haven't done this stuff before). I have googled up and tried to follow the ...
3
votes
1answer
56 views

Steady red light on 2 HP SAS drives in RAID 1

I have a HP ProLiant web server with two HP 300GB SAS SFF 2.5 inch drives (Model: HP 507127-B21). Both drives have a solid red light, however there is no indication within the management software that ...
1
vote
0answers
49 views

How to set the spin down timeout on WD Green HDDs [migrated]

My internal WD20EARS disk does not spin down autoamtically. I tried hdparm -S 1 (5 seconds), but nothing happens. I disabled the IntelliPower headparking with wdidle3 from the Ultimate Boot CD. hdparm ...
0
votes
1answer
70 views

Degraded RAID1 on debian 7.5

I am in a bit of a problem with my root server and a degrading RAID. Unfortunately, I'm no expert when it comes to RAID. System informations: Debian 7.5, SSD software RAID1, problem occur since a ...
-4
votes
2answers
50 views

Server have 6 harddisk, how to set daily full backup/clone harddisk? [closed]

i have a HP DL380 server, its have 6 harddisk, @72Gb each, i am planning to use centos + cpanel please suggest how to set daily full backup/daily clone harddisk? so if 1 main harddisk is broken, i ...
0
votes
1answer
61 views

Install Winsat on server 2012? Windows System Assesment Tool

I use winsat disk to see my disk read / write speed windows 8 and it works great: cmd : winsat disk -drive c Can this be used on windows server 2012?
1
vote
1answer
33 views

Connect USM hard disk to USB

Yesterday I bought Seagate 2Bay 4 TB NAS business storage: http://m.seagate.com/external-hard-drives/network-storage/business/business-storage-2-bay-nas/ Seller included Seagate Backup Plus 1 TB USM ...
0
votes
1answer
205 views

Dell PowerEdge R720 - Corrupted RAID

Apologies in advance for the lengthy question. We have a Dell PowerEdge R720 server with: 2 x 136GB SAS drives in RAID 1 for the OS (Ubuntu Server 12.04) 6 x 3TB SATA drives in RAID 5 for data A ...
-2
votes
2answers
129 views

Dell Power Edge R515 - Replacing a Bad Hard Drive in a RAID

I've ordered a new hard drive to replace a bad one in a Dell Power Edge R515. The manual covers obvious topics regarding physical replacing of hard drives, but I've never done this before on a ...
6
votes
4answers
507 views

SW SSD Raid 1 over HW RAID 10

A provider(data center) recommended I go with 1TB SSDs in a software RAID 1 over HW RAID 10 with mechanical drives. Their quote: Typically SSDs are most reliable than RAID cards and since you ...
1
vote
4answers
168 views

Rescue a Raid 1 from a dedicated server

I have a dedicated server (Hetzner EX4). One day, I rebooted the server and it wouldn't start. customer service told me that one of the hard drive was faulty, and activated the rescue system (Linux). ...
-1
votes
1answer
31 views

Getting ssd, should i keep the ssd cache drive

We are going to install sdd's as main hdd in all of our pc's. However, some of them already have an ssd drive that is beeing used as a cache drive. Should be keep this chace ssd? It was my though ...
1
vote
2answers
94 views

Identifying failed hard drive in RAID

I have a server which is running customized version of Debian. It is attached a sun storage raid. It has very limited tools and installing new tools is not allowed. :( This message I see in dmesg: ...
-2
votes
1answer
42 views

Amazon EBS Durability

According to this link: http://aws.amazon.com/ebs/details/#availabilityanddurability It said: Amazon EBS Snapshot can expect an annual failure rate (AFR) of between 0.1% – 0.5%, where failure ...
3
votes
1answer
107 views

How often should I scrub my RAID?

In general I would like to know how often a RAID array needs to be scrubbed. What contributes to the need to scrub more often (reading data?, writing data?, unexpected shutdowns?, drive age?, drive ...
1
vote
0answers
311 views

HP Dl360e Gen8 Not Detecting Hard Drives

I have a new HP Proliant DL360e G8 and it is not detecting the hard drives. We are using both non-hp, and official hp hard drives from an older server (DL120). Hard drives are 3.5" and they are not ...
1
vote
1answer
435 views

LSI MegaRAID SAS 9261-8i: Disk isn't recognized after replacement

I've got a Supermicro Server with an LSI MegaRAID SAS 9261-8i Raid Controller inside. There were 3 Disks attached to the controller which were configured as RAID5 array. One of the disks failed ...
-4
votes
2answers
115 views

Stacking Servers on top of each other without a using a rack [closed]

I have ten 19" servers each with 4 hard drives and an average 160W usage. For a 2 month test run of a service i want to put them just on a table without purchasing a rack. Maybe in two stacks 5 each. ...
0
votes
2answers
67 views

Alternatives to SMART for Monitoring HDD Corruption

Given that SMART is unreliable for predicting HDD failure, does anyone have a reliable alternative for automating quick identification of hard drives that are beginning to fail? This is for Windows ...
1
vote
0answers
42 views

Unable to access disks in rhel 6.5

I work for a biology lab. We recently bought a new microscope that produces an enormous amount of data - it is simply not feasible to store it on a desktop. So, we bought a storage server - the idea ...
0
votes
0answers
34 views

How do I check disk performance of LVM drive?

I have a CentOS server with 2 hard drives configured to use LVM over RAID1. How do I benchmark my hard drive? As seen in this question, I have used the following commands: # check read performance ...
2
votes
1answer
54 views

Limits on Read Transfer from Hard Drives

I just found that the specs of server harddisks mention a maximum number of TB read. For example WD Black Drive 2 TB mentions a 550 TB transfer limit per year. This means that every day it should read ...
-2
votes
1answer
74 views

Consumer level motherboards that play nicely with large numbers of drives [closed]

I currently have a system with 25 hard drives - 24 for data and one for OS. This machine is built on a budget, featuring a cheap Gigabyte motherboard (GA-990FXA-D3), a four port LSI SAS controller, a ...
0
votes
1answer
368 views

Recover data from ubuntu encrypted drive (LUKS)

I had a Host with Ubuntu 12.10 installed, and the entire harddrive was encrypted (with LUKS it appears), I remember the passphrase, but I have trouble to "open it". I am now on a beta version of ...
4
votes
1answer
251 views

How to access SMART attributes when using RAID with a Dell Perc 4e (LSI)

I can't easily shut down this windows server, so I'd like 'online' solutions. I tried the following unsuccessfully: Seatools Enterprise: caused a BSOD smartmontools: scan only showed virtaul RAID ...
-1
votes
2answers
125 views

No advantage from SSD boot drive for 24/7 server? [closed]

Since my OS and applications are loaded into memory upon boot, isn't there no advantage from having my OS on an SSD boot drive for a server that is kept up 24/7? I know there are several assumptions ...
10
votes
1answer
895 views

What is the term for this piece of hardware?

This is a silly question but what is the "official" term for what is carrying this hard drive? I need to know if I can purchase it separately from the hard drive.
1
vote
0answers
38 views

Hardware configuration for head nodes (HDDs, memory, processor, redundancy)

I'm designing a head node whose primary function is to submit jobs to the Torque/Maui scheduler and secondary function is to run test jobs. Unfortunately, most hardware selection guides for clusters ...
0
votes
0answers
66 views

SMART: Raw Read Error Rate Errors on Mirrored Drives

Thanks for reading. I have a pair of 150GB WD Velociraptors that have failed SMART status. The only fail they have is the Raw Read Error Rate, which is as follows. ...
0
votes
0answers
110 views

UDMA_CRC_Error_Count = 1 after a smart test

I have a server with an Hardware RAID, with one of two hard disks the smart test show this: http://pastebin.com/H86xgcHk The questions are: - What does UDMA_CRC_Error_Count = 1 mean? - It says "ATA ...
0
votes
2answers
85 views

Upgrade Hard Drive - Keep domain membership?

If I upgrade my laptop hard disk by cloning it to an SSD with PartedMagic will my computer fall out of the domain to which it is a currently a member? Doing some Google searching and it doesn't look ...
0
votes
1answer
56 views

Error at partitioning disk

I am struggling to install debian squeeze (64 bit) OS in the system which is having RAID 1. While partitioning the drive, It says an error Operation not permitted during write on /dev/md126 . I am ...
1
vote
1answer
89 views

SMART “power on hours” attribute for different HDD manufacturers

Is there a table of how to interpret the SMART attribute "power on hours" depending on the HDD manufacturer? Some of them use hours, some minutes or even seconds...
-1
votes
2answers
903 views

how to fix hard drive errors? [closed]

Suddenly, My hard disk is not working. While booting, It gives failed command: READ DMA and status: { DRDY } error. So, I booted the system with live CD and tried to mount the hard disk. It gives the ...
1
vote
3answers
106 views

Is there a point where harddrive age (Power On Hours) necessitates replacement? [duplicate]

I have several storage arrays where a significant number of the drives have been powered on between 25,000 - 30,000 hours (2.8 - 3.4 years). These drives have no other issues or errors. What I want ...
2
votes
2answers
126 views

SAS disk and intel motherboard

What kind of Cable shall I use to connect [ http://www.amazon.com/SAS-Enterprise-Hard-Drive-WD1001FYYG/dp/B0090UELTW ] and server board: http://ark.intel.com/products/56334/intel-server-board-s2600cp4 ...
0
votes
1answer
183 views

Disk access slow

I have a process running in a CentOS 6.3 server. When logging is turned on, the process slows down drastically. The logs are being written to /tmp [root@localhost src]# hdparm -I /dev/sda /dev/sda: ...
-2
votes
2answers
241 views

Why does a failed ZFS disk still seem to work fine?

Two disks just failed in my zpool with read/write errors, so I took them out and inserted them in another host, created a zpool just with them, and filled the file system with dd if=/dev/zero ...
2
votes
2answers
276 views

Disk IO cutting out on Windows Server 2008 R2 running in VMWare

We've been trying to fix a problem with our server for about a week now. Only in the past few days have we really found out what the issue is. Just some information up front: We run a VM with a 3rd ...
11
votes
4answers
683 views

Disk Speed Performance in a SAN

We are currently looking into buying a SAN, and have some concerns over the speed of disks we are going to put into the array. We would normally have gone for 15k disks over 10k every time, but one of ...
0
votes
0answers
53 views

hdparm: Hard drive spin down logs

I've been using hdparm successfully to spin down hard drives on some systems, however I'm curious, is there anyway I can make hdparm generate some kind of spin down log, so I can further optimize the ...