-1
votes
0answers
20 views
Connecting 3TB SATA drive to SAS board [closed]
I tried connecting a western digital 3TB SATA drive to a SAS board in my HPz800 workstation. However, in the BIOS, only 2TB is detected from the 3TB SATA connected to the SAS board. Is there such a ...
1
vote
4answers
177 views
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 ...
3
votes
2answers
178 views
CentOS expanding directory
I currently have a file server, and all the files are installed in /usr/local/nginx/html/.
The setup is one hard disk with 1 TB of data. This 1 TB of storage is all used up.
I asked the ...
4
votes
6answers
225 views
Securing a single HDD from a retired RAID 5 array
I want to sell two hard drives. Both have been used in a software RAID5 with a logical volume manager.
I want to delete all data in order to sell them. But on the devices are no partitions.
Is it ...
1
vote
2answers
97 views
Move HDDs to new hardware
I have a proliant ML150 G6 that has storage controller problems (a Smart Array P410/Zero Memory). It has 2 HDDs in a RAID 1 (or 1+0 I do not remember).
I have another proliant DL180 with a similar ...
2
votes
1answer
86 views
How to identify which hdd to be replaced in RAID
Our RAID5 (using Adaptec 3085) stopped working because one of the hdd is broken. How can I identify which one it is?
1
vote
2answers
51 views
Testing for faulty HD or RAM
I have a Fedora server hosted remotely and for the last couple of days simple processes seem to be causing the server to slow down incredibly. I am starting to feel that the RAM or the HD might have ...
2
votes
2answers
173 views
Can I increase my Dell RAID 1 from 250GB to 500GB just by plugging in larger drives?
I have a Dell PowerEdge R300 with a Dell SAS 6/iR Internal Controller RAID PCIe and two 250GB SATA HDDs in RAID1 configuration. One of the HDDs has died so I want to swap it out for another. At the ...
1
vote
1answer
44 views
Mirrored HDD on Windows 2000 Server become invalid on Windows 7
I have a situation:
I had two SATA HDD, on mirror (soft mirrow by Windows), on Windows 2000 Advanced Server x86
then I remove it, throw away the server and keep the disk.
Now I want some data on ...
0
votes
1answer
561 views
Make vmware virtual machine from HDD with bad sectros
I have a notebook with a bad HDD (it has bad sectors). I would like make a virtual disk with VMware workstation from this computer.
I installed VMware Workstation & VMware vCenter Converter ...
5
votes
1answer
164 views
Corrupt files' contents, while FS is OK
Looks like my USB HDD is old and corrupted:
rsync: read errors mapping "path/to/file.jpg": Input/output error (5)
Syslog:
kernel: [58927.940676] sd 6:0:0:0: [sdb] Unhandled sense code
kernel: ...
-1
votes
3answers
141 views
Windows/Linux HDD benchmark
I'm going to compare, how windows virtual machines are working in QEMU/KVM environment and IO performance loss. So I want to measure HDD performance in Linux host and Windows VM. Is there any ...
0
votes
5answers
113 views
Desktop HDD in a server? [closed]
Possible Duplicate:
What are the merits of SAS vs SATA drives?
Would it be OK to use a SATA 6Gb/s desktop drive in a server?
Say for example a 4 Seagate ST31000524AS drives in a raid 10 ...
-3
votes
1answer
72 views
HP X1400 HDD Upgrade from 4 to 8 TB
i have an HP X1400 Storage Server with 4x 1TB HDD´s. Now i replace them with 4x 2TB HDD´s
but the system shows only 4TB, can anybody help me?
Sorry, i´m the first time here....
It was an HP AP786B ...
1
vote
2answers
163 views
SSD redundancy via HDD
Is there a way to guarantee redundancy to an SSD using an HDD?
Raid 1 is the best choice to guarantee redundancy in HDDs, but SSDs are too expensive to guarantee redundancy via RAID. If I was to ...
1
vote
0answers
468 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 ...
3
votes
2answers
147 views
Repartitioning two disks without a loss of data
I am interning at a software company and I have hit somewhat of a brick wall. Here is the deal:
The Problem: We have some boxes around here that were incorrectly partitioned for 2 x 500 GB drives. ...
1
vote
2answers
36 views
Repartitioning two disks without a loss of data [closed]
Possible Duplicate:
Repartitioning two disks without a loss of data
I am interning at a software company and I have hit somewhat of a brick wall. Here is the deal:
The Problem:
We have ...
1
vote
2answers
128 views
RAID: Two key concepts if anyone could clear them up?
I had a quick question about RAID. I understand that RAID uses one or more parity disks to repair failed disks, but I was wondering what they mean by "declustering" the disks? And also, if someone ...
-2
votes
2answers
50 views
How does the process of disk partitioning actually work on most HDD's?
From what I know of most laptops, you are able to "partition" your disk into as many other drives as you please. The more you cut it up, the smaller your partitions are, but from an organizational ...
1
vote
1answer
101 views
Harddrive / Raid1 issues
I'm having problems with the hard-drives in my root-server.
It's running with 2 hdds in a software Raid1.
After having performance issues with a large MySQL DB, that writes via O_DIRECT and ...
1
vote
2answers
273 views
How much performance cost for hdd encryption on NAS?
I recently purchased a NAS and it offers encryption. It is a QNAP TS459 Pro II.
How much will performance be impacted if I choose to encrypt the data on the device?
2
votes
2answers
84 views
Hard Drive Effects of Continuous Delete and Rewrite
What are the effects of continuously writing and deleting files on a magnetic hard disk? Specifically, do these files continue to be written on the recently cleared space or is there some sort of ...
1
vote
4answers
95 views
What is the easiest way to run a boot level surface scan?
I have a PowerEdge 1850 running two SCSI Ultra 320 drives (10k 73gb). I am looking for recommendations on boot disks / methods to run a boot time surface scan. I would like to do this at boot time ...
3
votes
3answers
394 views
How to determine disc spindown time
I am able to set both APM and spindown times using the command:
hdparm -S 246 -B 128 /dev/sda
Unfortunately I can only find the APM value in the information output:
hdparm -I /dev/sda | grep ...
17
votes
4answers
1k views
Is a hard drive's serial number globally unique?
On Linux I can use smartctl to get a hard drive's vendor, model, firmware revision and serial number:
# smartctl -a /dev/sdb
smartctl 5.40 2010-07-12 r3124 [x86_64-unknown-linux-gnu] (local build)
...
1
vote
3answers
45 views
boot manager for two partitions on different HDD
Is there a way to install a boot manager to the MBR, like GRUB, so that I can choose from my IDE drive running Windows 7 Pro and my SATA drive running Windows Server 2008 ? The way it is now is that I ...
2
votes
3answers
398 views
Does this SMART selftest indicate a failing drive?
I'm wondering if the results of this SMART selftest indicate a failing drive, this is the only drive that comes up with 'completed: read failure' in the results.
# smartctl -l selftest /dev/sde
...
0
votes
2answers
155 views
Identifying the Bottleneck on a Static File Server at 1000 requests/sec
This is something that has plagued me for a very long time and I'm really hoping someone could help me out.
I'll keep it short and simple: I have a file server (2x Dual Core Xeon 2.0, 8GB RAM, 132 ...
3
votes
1answer
112 views
How to map a folder to memory?
Is there a way to map a particular folder to memory? Say I have C:\somePath and I want that folder to be in memory at all times and maybe changes are dumped to HDD asynchronously without my notice. So ...
1
vote
0answers
111 views
how to check whether the hdd is idle?
I am using Solaris 11 Express and activated the power.conf which makes my disks go idling after 30 mins like a charm. I can hear the disks spin up when I access something ZFS disk-related.
Is it ...
0
votes
2answers
139 views
Finding IBM SAS 15k HDD specifications
We've ordered set of 15k 300G IBM HDDs to build RAID.
On a question about which HDD model we will have, hw vendor provided following data:
P/N 43X0802 300Gb 15K HS SAS HDD
This label tell me nothing ...
1
vote
5answers
142 views
Upgrading old SAN, expected performance increase?
I am working with a postgresql database that sits on really old Hardware.
1 Sun Sunfire V60x with a single 3.0ghx Xeon FSB 400 512kb cache with 6gb of RAM running RHEL 4 (32bit)
The table space and ...
0
votes
1answer
173 views
cfdisk quits with a fatal error in regards to the partition table
fresh install. 'cfdisk /dev/sda' gives the following output:
"FATAL ERROR: Bad primary partition 2: Partition ends in the final partial cylinder"
what could be the reason for this to happen and what ...
0
votes
2answers
237 views
Ubuntu raid 1 write errors
I have an Ubuntu server set up with two SATA drives in a RAID 1 configuration with MDADM. The machine is used to record raw video, which involves a lot of writing to the disk. Sometimes during video ...
2
votes
3answers
2k views
Is there a reliability difference between 2.5“ and 3.5” HDDs?
I know there are a couple of key characteristics that determine the reliability of HDDs, but is there a difference between 2.5" and 3.5" drives?
In the past I've always assumed that 3.5" drives ...
0
votes
3answers
325 views
Mounting 2.5“ SSD in Antec Atlas 550's 3.5” bay
Just got some new SSDs to add to my servers, unfortunately there doesn't appear to be anywhere to actually mount them.
The cases are Antec Atlas 550 mid-tower server cases. The problem is that the ...
1
vote
0answers
100 views
SAS disk performance drops a while after reboot on cent 5.5 boxes
So we have some workstations with identical hardware.
The Fedora14 box has a couple weeks uptime and still get good performance.
hdparm -tT /dev/sda
/dev/sda:
Timing cached reads: 21766 MB in ...
1
vote
2answers
57 views
Is there a problem with having massive amounts of self-mounts?
I have a configuration in which I want to use a huge amount (1000-10000) of self mounts (mount --bind). My filesystem is ext4 in RAID 1 with two 400GB HDDs.
Basically, what I am trying to do is ...
1
vote
1answer
99 views
SharePoint WSS3.0 how much free space should I be running with
My Sharepoint WSS 3.0 box is running into various issues and I notice it has less that 3GB free HDD space.
what is the recommended amount for a sharepoint server to keep free and available?
This is ...
0
votes
1answer
430 views
Clone disk with dd, and change blocksize?
I need to clone my 300GB disk to 500GB disk with dd, but the old disk (300GB) has too *big block size.
Will this change the block size of output partition too? I understod that obs only meant to be ...
1
vote
1answer
91 views
Check Drives Before Installation: Is Badblocks Good Enough?
I wanted to know what people do to test drives before installing them in a RAID. I saw badblocks. Would write-mode, prior to installing the filesystem be sufficient in your minds?
0
votes
1answer
30 views
SQL and IIS HDDs configuration on server
I've just added a new production server and I was wondering if you guys could help me decide which configuration suits best.
Current configuration:
40GB ~ C (System)
250GB ~ D (SQL - MDF & LDF)
...
1
vote
2answers
145 views
Upgrading NAS hard drives
I was thinking of buying a NAS for home-usage. I've never used a NAS or had HDDs set up in Raids. Before I commit myself to moving all my data to a NAS I need to find out how difficult it is to ...
0
votes
3answers
223 views
Low read latency SSD
What's the most cost effective low latency (when reading) SSD?
My application involves DB searching, so write performance isn't a concern. 64GB is sufficient
I've looked at Fusion IO ioXtreme, ...
1
vote
2answers
379 views
RAID6 setup - adding additional drives
I want to setup a dedicated server. To begin with we need a minimum of 8TB. I believe I can begin with 6x2TB drives in a RAID6 setup to achieve this.
Now when I need to increase this capacity to ...
2
votes
3answers
118 views
Why is striping not applied to harddisks internally?
This question bothers me for years now...
If it is inappropriate here, a valid answer would point me to the perfect place.
As far as I know, striping is used in several storage situations to speed up ...
0
votes
1answer
485 views
Hard-Disk Performance: Two Partitions (Raid) vs One Large Partition (Raid) for VMs?
I have a dedicated machine (host) that will host two guests (Virtual Machines via KVM). What is better in regard to IO Performance:
Sorry, important update, by RAID I mean RAID-1 (and I will not ...
0
votes
1answer
309 views
Failing Sata HDD
I think my HDD is fried... Could someone confirm or help me restore it?
I was using Hardware RAID 1 Configuration [2 x 160GB SATA HDD] on a CentOS 4 Installation. All of a sudden I started seeing bad ...
1
vote
5answers
1k views
NTFS hard disk repair utility in linux
Is there a hard disk utility which can format(NTFS) &repair a HDD which has lots of bad sectors like Norton Disk Doctor from Linux ?
