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Questions tagged [hard-drive]

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

Questions about hard disks performance, issues, tips, and related software, e.g. data recovery or disk test software.

2448 questions
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Which file system to use for portable hard drive shared among different operating systems?

Something similar has been asked already but my criteria is a little different. I need to share a portable hard drive (USB/Firewire) between Mac OSX, Linux and Windows XP systems where the files being shared are sometimes >4GB. Is there a file…
Jonathon Watney
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Linux different size for df and du for root partition

On my CentOS server, both of the commands are showing different usage for disk / , df shows this output: Filesystem Size Used Avail Use% Mounted on /dev/xvda2 16G 14G 952M 94% / /dev/xvda6 996M 258M 687M 28%…
Farhan
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Recover data from SCSI hard disk

We've got an old server with SCSI hard disk. The server crashed last week and it isn't exactly known what hardware component is damaged. Since the server is due to be retired anyway we don't want to repair it but just restore the data from the SCSI…
Tom
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Are new HP Gen8 servers compatible with g7 drives?

Are HP Gen8 servers (namely DL380 Gen8 with 2.5" HP disks) compatible with 2.5" harddrives from G5-G7 servers? I mean original HP disks in HP caddies not plain SAS/SATA drives.
Fedor Piecka
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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 software RAID 10 with heavy disk IO, some of the SATA…
Nick
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how to use a disk with high reallocated sector count?

After 3 years in 24x7 service a 1TB Seagate Barracuda ES.2 enterprise drive is showing signs of failure. S.M.A.R.T. reallocated sector count is high. Wikipedia article suggests that the drive can still be used for less sensitive purposes like…
Dima Chubarov
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Partial-stroking / Short-stroking / Half-stroking Hard Drives?

Could anyone here explain to me what is implied by this term? (I've seen the same thing mentioned with the 3 terms). At first when I read about it, for some reason I understood that it was some way of splitting the bytes across the platters of the…
Daniel Magliola
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lvremove claims LV to be open

frequently I notice that after a $ sudo lvcreate vg -L 10G immediately followed by a $ sudo lvremove vg/ I get the error message Can't remove open logical volume "..." while a $ sudo lvs shows me for that volume lvol2 vg…
glglgl
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Linux disable disk cache for a single command

Our server is performing decently, but when backups or other scan processes run it will tank the entire server. Something like clamd will run and scan many files. While we expect slow performance, it's killing our cache and the end result is we…
Kristopher Ives
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Poor Linux software RAID 5 performance with NCQ

While salvaging a 2-disk failure in my 3-disk RAID 5 setup, I happened to notice reconstruction was faster with NCQ disabled (~90M/sec) than with the NCQ enabled (~50M/sec). Running bonnie++ to benchmark the two configurations also revealed…
Owen Fraser-Green
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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 at the 2.5" SATA interfaced drives. I know that…
Anthony
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df showing wrong disk size

Df -h is showing a wrong empty space on my server, for one of the disks: /dev/sda2 450G 393G 34G 93% / Cpanel shows that it has only 34GB free, but there is a lot more. A few minutes ago, I removed over 80GB of log files. So, I'm…
valter
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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 which is ata12.00. Is it possible to retrieve…
mamruoc
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centos 100% disk full - How to remove log files, history, etc?

mysqld won't start because disk space is full: 101221 14:06:50 [ERROR] /usr/libexec/mysqld: Error writing file '/var/run/mysqld/mysqld.pid' (Errcode: 28) 101221 14:06:50 [ERROR] Can't start server: can't create PID file: No space left on…
kopeklan
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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 dmesg and it always says "SCSI", but I'm sure…
cd1
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