A permanent data storage device used for storing and retrieving digital information using rapidly rotating discs (platters) coated with magnetic material in a rigid form factor (as opposed to floppy disks).
2
votes
2answers
1k views
spin up drive in linux
I have 8 drives in my server connected via PATA. The drives are set for no-spin via jumpers on the drive. hdparm -I says
powers-up in standby; SET FEATURES subcmd spins-up
What command do I use ...
5
votes
2answers
1k views
Diskless workstations
For various reasons I need a setup with one server, and two diskless workstations.
The workstations are to be "fat clients", which means I want to enable them to use their own CPU, memory, etc, for ...
1
vote
1answer
768 views
Ubuntu 10.10 installed from windows 7: how to expand drive?
I'm new to Linux. I've installed Ubuntu 10.10 from Windows 7. It's not in Virtual PC, it is independent. It uses a virtual drive in c:, I have chosen it to be 10 Gb.
Now I want to increase the size ...
2
votes
1answer
383 views
Creating an extended partition
I'm trying to create an extended partition. In GParted, I shrunk the size of the existing partition and now want to create a new EXTENDED partition in the free, unallocated space. GParted only lets me ...
5
votes
2answers
823 views
How to time grep commands accurately?
I want to compare the speed of these two commands:
grep pattern1 files*
grep pattern2 files*
Unfortunately, the first grep reads much of files* into memory
buffers, so the second grep runs ...
11
votes
1answer
554 views
What is the difference between “extended” partition and “logical” partition
What is the difference between "extended" partitions and "logical" partitions on my hard disk? What's the need for each? I am using Linux
1
vote
0answers
136 views
cdrdao is installed, but Brasero doesn't think so [closed]
When I try to copy CD to image, Brasero tells me that cdrdao isn't installed. However I reinstalled cdrdao and Brasero, but the error is still there.
[system] Ubuntu Lucid (10.04)
4
votes
3answers
265 views
What would be a good choice for an elastic file system (for adding storage at a later date)?
I'm currently running a Debian 6.0 server with EXT3, but I'd like to move over to Arch. It's being used as a file server right now with a 1TB drive in it (of which 650GB in it is used). What I'd like ...
1
vote
2answers
239 views
Why is badblocks segfaulting?
I am trying to check a mounted partition to see if the drive has errors:
[root@virtuality ~]# /sbin/badblocks -v /dev/sdb1
Segmentation fault
Uh oh. What does this mean? Why is badblocks ...
3
votes
1answer
122 views
Adding efficient storage to a laptop-based system
I've recently asked an as-yet-unanswered related question.
My question here is a bit different: I want to know the best way to add storage to a laptop-based system without sacrificing power ...
8
votes
2answers
480 views
saving data from a failing drive
An external 3½" HDD seems to be in danger of failing — it's making ticking sounds when idle.
I've acquired a replacement drive, and want to know the best strategy to get the data off of the dubious ...
6
votes
3answers
3k views
Prevent a USB external hard drive from sleeping
Does anyone know if there is an elegant way to tell an external usb drive not to spin down after a period of inactivity? I've seen cron based solutions that write a file every minute, but nothing ...
8
votes
4answers
7k views
How to see disk details like manufacturer in Linux
With sfdisk -s I can see the disk capacity as follows:
$ sfdisk -s
/dev/cciss/c0d0: 143338560
total: 143338560 blocks
How do I see disk details like disk manufacturer? I tried hdparm, but got an ...
5
votes
1answer
278 views
Why doesn't dm-crypt handle write barriers properly?
One of the well-known properties of dm-crypt is that it does not handle write barriers properly and hence it requires turning off on-drive write cache to prevent corruption of filesystems. As far as I ...
3
votes
2answers
921 views
How to create a new partition on a hard disk?
How do I create a new partition on a hard disk, from the terminal? I've been reading the man pages for fdisk and mkfs, but they're confusing. I need to know how to create a new partition on a blank ...
3
votes
1answer
301 views
How to recover a missing file
I am running ubuntu and last week the system didn't let me alter files as if I had no write permissions. Then on reboot the system did a check of the system which took some time. Then everything went ...
23
votes
7answers
44k views
How do I find out what hard disks are in the system?
I need to know what hard disks are available, including ones that aren't mounted and possibly aren't formatted. I can't find them in dmesg or /var/log/messages (too much to scroll through). I'm hoping ...
6
votes
5answers
2k views
Sync writes very slow. Ubuntu 10.10, 32 bits, ext4
I am running ActiveMQ on my Macbook Pro that runs Ubuntu 10.10, 32 bits with an ext4 partition.
Linux iker-laptop 2.6.35-23-generic-pae #40-Ubuntu SMP Wed Nov 17 22:32:51 UTC 2010 i686 GNU/Linux
If ...
1
vote
1answer
414 views
How to mount external hard disk every time the server is restarted?
I have a server which the date will be backup to a external windows server hard disk which is mounted. But problem is every time the server is restarted I will need to mount the disk manually. How do ...
4
votes
2answers
1k views
Names for ATA and SATA disks in Linux
Assume that we have two disks, one master SATA and one master ATA. How will they show up in /dev?
