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

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0
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0answers
14 views

Apache slow page load - cache / RAM drive / SSD issue?

I've migrated recently from CentOS 6.4 to CentOS 7 on our server and I've got small problem (however probably not system related), this is my configuration for both systems: System 1: CentOS 6.4 ...
0
votes
0answers
20 views

Hyper-V Machine harddisk full, but not so

My virtual machine is having harddisk issues, at least that is what Hyper-V says. The VM has 20 gb available and is running ubuntu 14.x server. Its current usage is 4.7 GB and hyper-v pauses it time ...
41
votes
8answers
54k views

How can I monitor hard disk load on linux

Is there a good command line utility to monitor hard disk load on linux? Something like top but then monitoring disk activity i.s.o. cpu usage. More specifically, I suspect that for some (heavy load) ...
1
vote
1answer
35 views

Convert RAID from Mechanical Disks to SSD?

Any issues with converting a Mechanical Disk RAID to SSD by replacing the drives one-by-one? I couldn't find anyone online who has done this, so let's make this the place to post about it. If you ...
-1
votes
1answer
33 views

How can I resume a dd operation after a “error writing in file” status?

This command produced the error mentioned above after 9 h (preparing a 2 TB hdd for encryption): time openssl enc -aes-256-ctr -pass pass:"$(dd if=/dev/urandom \ bs=128 count=1 2>/dev/null | ...
2
votes
3answers
2k views

High disk I/O activity in CentOS server

I have about 16 websites in a CentOS dedicated, and I am having some problems on high traffic hours, it seems to be a high disk I/O activity causing a general slowdown. I've installed atop and this ...
5
votes
6answers
24k views

Check for hard disk errors / signs of failure on CentOS Server

What's the best way to check for HDD errors and early signs of failure on CentOS?
2
votes
2answers
3k views

How to change hard disk array on HP Proliant ML 350?

We have a hd damage and we need to replace this hd, How to change and add more hd to array to HP Proliant ML 350 G5 server ?
0
votes
2answers
53 views

Dell RAID controller and 36TB storage [on hold]

I've been back and forth with Dell about their RAID cards for a PowerEdge R710 server. So far half the customer service people who I spoke too said it would work, the other half said no. My question ...
0
votes
1answer
19 views

Recover data from OpenBSD softraid down to a single disk

I'm currently very desperate: I have a 3TB WD Red disk that I need to extract data from. This was part of a softraid on an OpenBSD 5.6 machine. I was in the process of migrating to a zfs on linux ...
23
votes
14answers
23k views

Fastest, surest way to erase a hard drive?

I'm looking for a quick, simple, and effective way to erase the hard drives of computers that my company will be getting rid of (donation to charity, most likely). Ideally, I would like a ...
1
vote
1answer
32 views

Windows Server 2012 hide external HDD for non-admins

I am setting up a server where people connect to via Remote Desktop. It uses AD DS and uses an external HDD with a share on it for people's data. However when these people log on, aside from the ...
-2
votes
0answers
14 views

Common causes of overheating cpu & hard drive? [migrated]

Wife's laptop is constantly registering higher than normal temperatures for the hard drive and cpu. The fan is working, and is constantly running. The temperatures for the hard drive and each core ...
0
votes
1answer
180 views

Windows 2003 Near Freezing

Problem: Our server becomes very very slow (near freezing) if I copy a file from any directory on C: and D: to any other directory. In short It becomes very slow if I touch the hard disk. Currently I ...
17
votes
2answers
3k views

RAID-6: better to replace two dead drives at the same time, or one at a time?

We have a 16-drive RAID-6 that has three problem drives. Two are already dead, and the third is giving SMART warnings. (Nevermind how it got in such a bad state.) Obviously we want to replace the ...
12
votes
13answers
874 views

Hard drive fail - How to regain confidence on the drive or make some use of it

After a hard drive fail (lots of corrupted sectors) I reformat it, but the drive give me no confidence to use it in production. Is there a tool to stress test so I know I can use it? In which ways ...
32
votes
11answers
11k views

Does an unplugged hard drive used for data archival deteriorate?

If I were to archive data on a hard drive, unplug it, and set it on a (not dusty, temperature-controlled) shelf somewhere, would that drive deteriorate much? How does the data retention of an ...
0
votes
0answers
13 views

Rebuilding FakeRAID RAID 5 with new disk, no partitions show up, invalid PMBR

I have a RAID 5 array with 4 2TB disks on a HP Z800. One disk failed and was swapped out for a new one. I went into BIOS Intel Storage Matrix Utility and set the Array to rebuild with the new disk. ...
1
vote
2answers
32 views

Resizing Azure Primary SSD OS disk on Linux

The 29GB of primary disk coming up with Ubuntu 14.04 are not enough for our needs. Also (from what I understood), the attachable disks are not SSD. Is there an updated method of resizing the primary ...
1
vote
2answers
3k views

Is there any way to shrink qcow2 image without converting it raw?

Is there any way to shrink qcow2 image without converting it raw? I cannot convert it to raw because I don't have disk space enough for raw image.
1
vote
2answers
514 views

Windows server detected error with hard disk

We have hosting Windows server 2008 R2 and I am working as admin in small company. The server is hanging and restarting as the hard disk seems to be damaged due to power fluctutaion(though having ...
-3
votes
2answers
55 views

Windows Disk Management tells me “Disk is not initialized.” What does that mean? [closed]

I have a disk I need to recover, but the problem is that when I connect it via USB to my Windows, machine, Disk Management tells me Disk is not initialized. When I try to initialize the disk, either ...
1
vote
2answers
249 views

Why can't I recover a RAID1 disk which apparently has no errors?

For several years now we run a software RAID1 on a old Gentoo box with a custom Linux 2.6.31. The RAID consists of 2 harddisk with 4 partitions each. In the last years it happend about 3-4 times that ...
-4
votes
2answers
98 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 ...
2
votes
3answers
3k views

Unsupported 3TB drives - should we expect any issues?

We recently purchased a number of 3TB drives, only to realize later it was for a Dell server with a PERC 6i, and that >2TB drives are not supported. Based on the amount we paid though, the restocking ...
0
votes
0answers
48 views

IBM x3950M2 server, no drives detected during windows install

I have an IBM x3950M2 (72236MU) server that was running Server 2012. I decided to swap some drives around and reinstall from scratch with Server 2012r2. However I am unable to get the windows ...
-1
votes
0answers
13 views

How to boot Windows from new hard drive [migrated]

I just bought a new, bigger hard drive. Currently I'm running Windows 8.1 with a 1TB hard drive. I just bought a new 3TB hard drive and installed it in my computer. Everything seems OK and Windows ...
40
votes
23answers
7k views

How do I destroy a hard disk?

I have an old hard disk (Maxtor 250Gb) from about 3 years ago that started giving errors and now sits in a draw in my desk. It has some confidential data on it but it's unlikely that it can be read ...
2
votes
4answers
2k views

Re-sizing disk partition linux/vm

I VM Player running a linux guest and I was wanting to know how do I expand the disk? In the VM player I gave more disk space but I am not sure how to mount/expand/connect the new disk space to the ...
1
vote
1answer
17 views

Finding out which cciss disk is what /dev/sdX disk (smartmontools & cciss raid controller)

I have a HP server, which has a hardware RAID array (that mostly isn't being used for raiding, the disks are just passed through to the Linux OS). I have 6 SSD disks. 2 are riad mirrored together by ...
1
vote
1answer
33 views

is it possible to move hard disks in raid 5 to pc without raid controller for accessing the information Temporarily?

I want to rebuild my array (RAID 5) for expansion. In the current configuration, I have 3x320GB hard disks giving me about 600 GB usable. I want to replace these hard disks with 3x1TB hard disks ...
0
votes
1answer
33 views

Disk I/O at limit with software raid

whenever I use rm or cp on a bigger file structure the disk i/o is going up to the top, but not with the focus on cp or rm, it is the software raid sync. My knowledge in this area is limited. The ...
-1
votes
0answers
23 views

Ubuntu 14.04: add physical space drive to folder with existing content [migrated]

system: a VPS running Ubuntu 14.04, apache 2.4.7 I added a virtual disk drive to my VPS server. I would like that the OS (Ubuntu 14.04) resides on its own "system" drive, and my clients files reside ...
3
votes
5answers
8k views

Linux - How to figure out what harddrives are attached?

So I have a server that has a few harddrives in it, all formatted and mounted. However I'm told there is another drive attached to it. How do I find out what drives are attached? How do I find out the ...
0
votes
1answer
89 views

HP Server Gen9 with Gen8 Caddies/Trays

If I have an Generation 9 (Gen9) server from HP, will I be able to use the Gen8 hard disk caddies/trays? For example if I get a HP ProLiant DL180 Gen9 will the old Gen8 caddies/trays still be ...
0
votes
1answer
1k views

Where is my new hard disk Citrix Xen Center

I'm trying to create a new storage repository on a server that already has 2 old hard disks, set up with hardware RAID 1. It's my first time doing this in Xen Server environment so I wanna be extra ...
8
votes
2answers
96 views

Are there any notable advantages (or disadvantages) to using EFI firmware and GPT boot disks in an ESXi environment?

My basic question is, as the title asks: are there any notable advantages (or disadvantages) to using EFI firmware and GPT boot disks in an ESXi environment? By "notable," I mean anything other than ...
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
0answers
39 views

Why is my HDD partition a character special device?

I have a bunch of old 1T disks with an mdadm array on them. They had been out of commission for awhile, but yesterday I slotted them into a server running an up to date Debian Jessie. Eventually I ...
0
votes
0answers
7 views

Share a hard drive for backing up using Mac TimeMachine and Ubuntu System Backups [migrated]

I have a Macbook Pro using Time Machine for whole system backup and a Ubuntu installed on another Macbook Pro (not dual boot) using default system backup. I have a 4TB SATA hard drive partitioned ...
-3
votes
1answer
78 views

How many hours of SMART power on hours use should a new hard drive have?

Purchased a new HGST hard drive. Using smartctl on OS X the new drive shows 71 hours of power on hours Does this make sense or is this a sign of a refurbished drive? I can't imagine why the ...
-1
votes
1answer
35 views

Server disk claims to be full, but appears not to be

I have no idea how this is supposed to work. I did df -h and got this result. Filesystem Size Used Avail Use% Mounted on /dev/vzfs 39G 5.8G 24M 100% / none ...
0
votes
1answer
949 views

Can't move large files, always get Input/output error after some time

I want to move a large file (hdd of a paralells vm, 81G) from one hd to another. After some time I get the error message: Input/output error. What can I do to move the file? I checked source and ...
2
votes
2answers
91 views

HP ProLiant Server HDDs - Buy Spare Parts vs. Retail

sometimes i have to upgrade HP Servers. For example when they get a new "job" to do. So lets say i need some more HDDs for an DL360 G7 Server. If the Server has an active HP Care Pack, does it matter ...
0
votes
1answer
51 views

Ubuntu 14.04 Cloud Server - Disks gone Read Only

Disks on our cloud server with our web host went read-only this morning for no apparent reason. Following that a reboot to try and rectify the issue resulted in a non-bootable system. Our Web Host ...
1
vote
1answer
181 views

freenas disc problems - smart error - how to repair zfs raid?

I have troubles with my freenas 9.2.1. It crashed today. Its running a fileserver on zfs jbod raid 2. I'm not sure what exactly causes the problems. The system is booting however reacting pretty slow. ...
3
votes
2answers
4k views

Hyper-V - Creating a large fixed disk - EXTREMELY Slow

Hey everyone, after posting another question here, it seems I have to create a fixed disk in order to get one 700GB. I have shut down the machine (which basically has nothing on it), and gone to ...
4
votes
6answers
23k views

How can I convert a logical partition to a primary partition?

I had my primary partitions maxed out but I deleted some and now I want to make one of my logical partitions a primary. Can I do this with gparted or other free tools? Thanks
-1
votes
1answer
37 views

Are there HDDs which tolerate high ambient temperatures?

For certain reasons I won't go into, I have this small server machine which tends to overheat. I don't have exact temperature measurements, but let's say something like... ID# ATTRIBUTE_NAME ...
0
votes
1answer
69 views

BTRFS, sector alignment and Advance Format Disks

I want to set up a BTRFS RAID1 setup with two WD Red 4TB disks, which possess 4K sectors. Since I am keen to get it right the first time before copying data to it (yes it will be backed up), my ...