The disk tag has no wiki summary.
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1answer
70 views
How can I stop Windows changing order of physical disks at every reboot?
I have to use some physical disks in a Linux machine virtualized with Virtualbox in a Windows 7 host environment but the order of physical disks keeps changing at every reboot and I must reconfigure ...
2
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2answers
20 views
Is there a way to file the cause (or target file) of disk write operations in linux (RHEL6.1)?
I have a virtual machine with a php based application (in apache) on it, when looking at disk activity there is a constant 170kbps write when apache is running.
When we apply load then the ...
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0answers
23 views
Calculate disk i/o of the disk on my laptop [closed]
Possible Duplicate:
How to measure disk performance?
How do I calculate the maximum disk i/o for my windows 7 laptop?
Similar, how do I calculate the maximum disk i/o for my external ...
2
votes
1answer
67 views
HD interface speed vs disk speed
I am looking at buying a new HD for a homegrown server and see that one of the candidates has a SATA interface with "3.0 GB/s" but it has a disk speed of 7200 RPMs.
Obviously, the SATA speed is a ...
1
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0answers
25 views
Can techniques for hard disk be applied to ssd?
I would like to know the techniques for hard disk are still available for ssd.
Suppose that we use a solid state disk based on nand flash memory for second storage(without hard disk).
when we read ...
0
votes
1answer
112 views
ccleaner erased most of the free space
I tried to use "erase free space" from ccleaner in mac. I was not sure about how it s going to work.When the process started there was about 175 gb space available and when the space started to ...
0
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1answer
74 views
Linux drive automount point path conventions
Like many I have several physical disks installed in my system and I set them up to be constantly mounted to some paths. I want to find a conventional general approach to it.
In my experience I've ...
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1answer
226 views
Recovered Files with TestDisk, but File Names and Folder Structure is Bad
I used Testdisk to recover files from an internal harddrive which I connected externally to my other PC.
With Photorec all the file names are wrong and the original folder structure doesn't exist.
...
0
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1answer
34 views
Tips on self-learning boot-time fundamentals (grub, disks, partitions, LVMs, etc)?
Is there any good resource which I can use to self-learn all the low-level system administration details on Grub, Grub2, disks, partitioning, LVM, etc? I'm comfortable with system admin tasks ...
1
vote
1answer
159 views
Virtual Machine files on ramdisk doesn't run faster than on physical disk
I installed total 36G memory (4x8G + 2x2G) in the host (Windows 7) and I used ImDisk to create a 32G ramdisk and format it to NTFS file system. Then I copied the virtual machine (in VMware Workstation ...
1
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0answers
21 views
How can I ensure only one port/disk is booted (attempted to be booted) from?
I have a new motherboard (Jetway NF98), and unlike prior BIOS/boards I have had, I am unable to garuntee a boot priority list and lock the BIOS out.
Goal: Ensure only one disk/port is booted from.
...
0
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1answer
90 views
Windows 7 does not recognize filesystem on external harddisk which works on any other PC
I have Windows 7 installed on a PC, and try to attach a external 2.5" Seagate 320GB harddisk. The PC itself is perfectly able to see this disk, and even boot from it on startup. There is onyl one ...
2
votes
1answer
168 views
win 7 something is causing excessive disk usage, maybe chrome?
On my Win 7 computer, this happens:
I work for several hours without problems, also using Chrome
Suddenly, just after refreshing a page in Chrome, disk starts being
used excessively
(here I can ...
0
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0answers
103 views
Where had my disk space gone? ie. Used+Free <<< Capacity - Solved (sort-of)
I have a PowerBook G4. OS-X 10.5.
Recently is was running very slow and I found it only had about 3 GB free.
I set to and free'd up 26 GB on the 93 GB drive.
Finder, however reports about 15 GB ...
2
votes
2answers
123 views
Where do these fake drive references come from? [closed]
Possible Duplicate:
Phantom hard drive after deploying latest Windows 7 image from WDS
This is a really weird issue which is the reason for the vague title; sorry.
The following screenshot ...
2
votes
2answers
71 views
when Windows 7 tries to “check disk for consistency” on startup, can I make it wait more than 10 seconds?
like, how about making it count down 3600 seconds to make sure that I have time to tell it to take a hike? How does it know to wait for precisely 10?
0
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1answer
76 views
Mismatch between CxHxS and “total number of sectors”
Model: ATA ST320LT007-9ZV14 (scsi)
Disk /dev/sda: 38913,80,62
Sector size (logical/physical): 512B/4096B
BIOS cylinder,head,sector geometry: 38913,255,63. Each cylinder is 8225kB.
Partition Table: ...
0
votes
2answers
50 views
Is the order inside a byte like “big-endian”?
In wiki, "big-endian" refers to the storage order of multiple bytes.
And a byte consists of 8 bits, it's also important to note the order of these bits.
I did dd if=/dev/sda count=1 | xxd -b, and ...
3
votes
2answers
195 views
How do I shrink an SD Card image?
I imaged a 16 GB SD card using the dd command. The card however, does not have more than 4 GB of data on it across 2 partitions (FAT32 & ext3).
I would like to transfer this image on to a 8GB SD ...
0
votes
1answer
116 views
Disk durability when using RAID 10 vs RAID 5
Most of the time technical articles about different RAID levels mostly about
how redundant they are, how fast on read/write etc.
But I can't find information about would a disk in a certain RAID
live ...
1
vote
1answer
91 views
track disk usage over time in linux
I know I can use df to get a summary of disk usage right now.
I can use du to break down into the detail of how the disk is being used.
The problem is I can only see this information for today.
...
3
votes
2answers
323 views
How do I get my disks to spin down after one hour?
I'm currently configuring a new home server, and I am trying to get the disks to spin down after one hour. But they do not spin down.
Setup
I have my entire system on an ssd: /dev/sda. I have three ...
2
votes
1answer
937 views
What's the use of windows hard disk write cache when the hard drive already has more than 8 megabytes of cache?
Doesn't a hard drive use its cache with high utilization? I see up to 20MB/s difference on file writes when I disable windows disk write cache. Does anybody know why cache size matters this much?
0
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0answers
24 views
View Files from mirrored RAID outside the device
The Product I have is a Western Digital My Book
The device has stopped working but there is nothing wrong with either of the two mirrored drives. I would like to take out the two mirrored hard ...
1
vote
1answer
96 views
How does disk size affect performance of a computer?
We run some applications in our Red Hat 5 servers. An application running on client machines accesses on a mount on this server. This application is used by users via X on windows PCs. There are data ...
3
votes
2answers
115 views
How to keep Linux running after hard drive removal?
I am working on an embedded Linux device with a USB hard drive. There is a swap file on this drive. The hard drive may be powered down at any moment before being powered back on few seconds later. ...
1
vote
2answers
70 views
Can I delete any unwanted file or folder in already written CD or DVD?
I have a DVD which is already written few folders along with files, but now I want to delete few unwanted folders along with files. Is it possible?
-1
votes
1answer
48 views
did not find any hard disk
I just bought a laptop. It came with Windows Vista Home. I wasn't that happy with the performance so I decided to downgrade to XP. I used a USB to USB cable and formated the hard drive.
I booted from ...
2
votes
4answers
226 views
Simple folder sync solution in Windows 7
I have a few folders that have files which I want to have back-up on a external disk.
Do you know an app that automatically synchronizes the contents of my folders with the contents of the folders on ...
2
votes
2answers
55 views
What does it mean for a program to exclusively use a disk?
Hi all this page has a message which goes like this:
If the disk is already in exclusive use by another program or is formatted using a file system other than NTFS file system, FAT, or FAT32, it ...
10
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5answers
2k views
What is the maximum number of partitions that can be made on a hard drive?
What is the maximum number of partitions we can make on hard disk in windows?
If it is limited to some particular number why they have they provided until letter Z to assign? If it is a special ...
1
vote
1answer
35 views
What's the typical directory usage for a home server?
I am setting up a Linux home server with FTP/Web/NFS/SSH/GIT services. It will be used as a backup server.
What's the typical usage of directories to keep my system organized?
1
vote
2answers
126 views
lost files, not freed on disk
I had a NAS with 300GB data stored on it. I played around with it and finally broke it - all of the data was lost. I opened the NAS and put the disk into my computer (running Ubuntu). I put new data ...
0
votes
1answer
206 views
Disk read error after installing Windows XP
When i start my system it says
A disk read error occurred.
Press CTRL-ALT-DEL to restart.
I had simply made three partitions and copied the files using the XP setup(Installation didn't complete ...
2
votes
1answer
160 views
Why is disk fragmentation measured as a percentage?
In Windows if I open up the Disk Defragmenter and analyse a disk the tool reports the disk fragmentation as a percentage:
What does this percentage mean? Obviously if a drive is 0% fragmented then ...
1
vote
0answers
47 views
Maintaining peak IO potential with DD / CP
I wanted to copy a file (40 gig dataset) from a single drive to a dual disk raid-0 drive. I tried with CP and it sustained read - 4mb and write - 11 mb (doesn't make sense I know (must be the stripe ...
0
votes
1answer
491 views
NTFS Partition gets auto-corrupt, becomes RAW and unreadable
I have dual boot on my machine: Windows 8 and Ubuntu 11.10.
Suddenly, one of my partitions went corrupt.
On Windows, it's showing this error.
Location is not available.
E:/ is not ...
2
votes
1answer
122 views
How to perform a low level disk copy? (Migrate Windows system from one disk to the other)
Currently, I have a SSD on my computer, I install my OS Windows 7 on it. Unfortunately, it's capability is too small (32GB), it gets full easily, I need to clean up files periodically, it's quite ...
2
votes
1answer
152 views
How to access single files from partially broken disk?
My laptop fell down and now I cannot start it. BIOS Hard drive tests shows "Error Code: 0000 Read Verification Failed" on the 0% of the test.
I need to copy data from the disk and thus I took it off ...
0
votes
1answer
55 views
How do I remove the remnants of data from my C: drive?
I have installed Cygwin software which contains C++ and c compiler, debugger and some more things. Later on I decided to install all what Cygwin contains in itself. But I run out of memory on C: disk. ...
1
vote
2answers
90 views
Install Second Copy of Windows in a Partition, Block Access to other Partitions
I want to lend my computer to my flatmate so that he can play some games for which his computer is underpowered.
Is it possible to install a second copy of Windows 7 into a separate partition and ...
0
votes
2answers
95 views
What is a good (preferably free) hard disk backup utility? [closed]
Possible Duplicate:
How do I easily copy or clone a Windows boot partition onto a new hard drive?
For some background: I have not been making full backups of my OS drives for a very long ...
1
vote
1answer
75 views
Windows 7 RAID disk size incorrect [closed]
I have 2 drives at 500gb each installed. I used the Windows storage manager to create a software mirror. Now I'm getting several disk full messages, and my C:\ reports having as few as 8MB free ...
2
votes
0answers
85 views
When and where does Wubi mount it's virtual disks?
My use of the wubi-new-virtual-disk command made Wubi start mounting this new virtual home disk over my /home folder. After the use of the script failed, I am left with Wubi constantly remounting an ...
0
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0answers
78 views
Not able to Defrag my drive for shrink even using PerfectDisk on Windows 7 [closed]
Possible Duplicate:
Not able to partition C:\ Drive as per needs in Windows 7
I want to partition my c drive which has over 450gb capacity of which hardly 30gb is being used. I deleted the ...
1
vote
3answers
349 views
Why is my computer taking so long to copy from one drive to another?
I have two disk drives in my computer of about 120GB each. The 'C' drive has about 50Gb of data and the other drive (E) is almost empty. When I try and copy a large directory (65gb) from the 'C' drive ...
1
vote
0answers
80 views
What's a good disk test that uses random data?
I'm trying to test a linux driver, and I need a test like bonnie or dbench, but I need it to send random data. I'm trying to find corruption bugs, and if every write is all zeros I can't tell when I ...
3
votes
1answer
558 views
Can you boot an operating system into RAM disk and how?
I would like to know whether and how you can setup a computer to boot into RAM. I have 16GB of DDR3 1600MHz RAM.
Could it be done in Windows? If not, maybe in a light version of Unix?
yout to get a ...
1
vote
1answer
135 views
Why is ZFS stored in a binary tree structure?
Apparently, in the ZFS (filesystem), there is an uberblock that points to the root of a zpool tree. Does anyone know why this tree makes things more efficient/reliable, and where the tree itself is ...
-1
votes
3answers
131 views
Disk configuration: What does it mean when two disks are “mirrored”?
I was just wondering what it means when people say that disks are "mirrored" to increase reliability. Is this some kind of alternative to RAID? Or are they referring to the properties of certain file ...
