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

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1answer
105 views

Which filesystem is this volume, I want to mount to an ubuntu server?

See those images below, it shows errors like wrong fs type, bad option, bad superblock, missing codepage or helper program, or other error.... I just tried to mount it as FAT mount /dev/sdf ...
0
votes
4answers
80 views

How do I mount a linux filesystem harddisk to a Windows server? [closed]

When I try to mount a linux filesystem harddisk to a Windows server. It will show that the harddisk is not initialized and unallocated in computer management, but it simply does not show up as A drive ...
3
votes
1answer
204 views

Using consumer grade hard drives in a server

My company needs to upgrade a couple of (very) old servers we are currently running, but we are kinda strapped for cash. We got a great offer on a pair of HP DL360 G6 servers, but the hard drive cost ...
1
vote
2answers
82 views

How can it be that mounting and unmounting takes hours to complete?

I am running an Ubuntu server 10.10 machine with 24 hard disks (and two OS drives). I am using a script to mount all the drives to their desired mountpoints. This works pretty fast, as expected, ...
0
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2answers
83 views

Missing hard drive on df -H command on Centos 6.4 [closed]

I have 2*1000GB hard drives + 60GB SSD. When I'm running df -H I'm getting "wrong" information about the server's hard drives. The output # df -H Filesystem Size Used Avail Use% ...
0
votes
2answers
121 views

Expandable Linux filesystem w/ redundancy & support for different drive sizes?

I did a bit of research already and didn't come across any filesystems so far that have the following features: Expandability, Redundancy, and the ability to utilize the full capacity of different ...
2
votes
0answers
60 views

Shrinking a volume and extending another in dynamic disk

I have a test environment where I converted a disk to dynamic, shrunk a volume, and then expanded another all on the same disk. The result is that disk management in Windows Server 2008 R2 shows two ...
3
votes
2answers
142 views

Age replacement policy for hard disks and SSDs at servers

I'm planing an age replacement policy for our storage and servers. Most of them are for DBs and some for images (static content) so yes, they have an huge I/O everytime. Also, we use Samsung 840 Pro ...
1
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0answers
114 views

best setup for fast sustained streaming (sequential?) disk writes

i am setting up a high speed/high resolution scientific image acquisition system. i need data write rates of ~1 GB/sec sustained for ~1 hour. i don't have experience with raid, but my plan is to ...
0
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0answers
616 views

KVM LVM-based guest… kernel: Buffer I/O error on device. Failing drive?

Currently setting up a small KVM host to run a few VMs for a small business. The server has 2 drives in software md RAID 1, then I have it set as a PV in an LVM setup. Guests and hosts are all CentOS ...
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votes
1answer
386 views

Linux “/dev/SDA” goes read only file system on SDB device failure [closed]

i have a very peculiar issue that is running in my system. Using debian linux : My system boots up very normally with a primary and secondary hard disk. suddenly my secondary hard disk fails with ...
0
votes
1answer
983 views

Dell PowerEdge 1950 physical disk has foreign status error

Dell PowerEdge 1950 has an issue with a raid. I have 2 disks on the raid, and it fails. When looking at Dell Open Manage it is because both disks show as state = foreign. Name State ...
0
votes
1answer
87 views

HDD operations slow server down, hangs completely

When running a tar cvzf command or copying large folders on the production server, the CPU load goes up to 8.5 (running on 8 cores) and the whole system hangs, neither apache is responding to any ...
0
votes
1answer
250 views

Hard drives indication with controller MegaRAID SAS 9261-8i on HP Proliant DL320e Gen8. Is it possible?

Give me advice, please. My situation: There're the server HP ProLiant DL320e Gen8 and MegaRAID SAS 9261-8i RAID Controller. I installed Controller into server and I reconnected Mini-SAS cord from ...
1
vote
2answers
123 views

Calculating IOPS for a single HDD - what am I doing wrong?

So I know there is no standardized way of calculating IOPS for a HDD, but from everything I have read it appears one of the most accurate formulas is the following: IOP/ms = + {rotational latency} ...
46
votes
8answers
2k views

What are the advantages of tape drives?

IBM still develop and sell tape drives today. The capacity of them seems to be on a par with today's hard drives, but the search time and transfer rate are both significantly lower than that of hard ...
2
votes
3answers
4k views

Reinserted a RAID disk. Defined as foreign. Is import or clear the correct choice?

I have re-inserted a RAID disk, on a DELL server with Windows Server 2008. The drive-status indicator was changing between a green and amber light, and the monitor gave the following message: ...
0
votes
2answers
101 views

Replacement Alternative for Dell FY606 in a Poweredge T105

I have recently upgraded my Poweredge T105 server to use a SAS 6/ir RAID controller. Unfortunately, I did not realize at the time that adding the card would cause the BIOS to complain about a missing ...
0
votes
1answer
116 views

mhddfs not support single file to split multiple hard drives.. if file size exceed limit of single storage device

I'm using mhddfs to combine multiple drives that are mounted over network using NFS. e.g. There are three machines Server Name Dir Space Server 1 /home 10 GB Space Server 2 /home 10 GB ...
1
vote
1answer
219 views

kernel warning disk error for command write - solaris svm

Recently this warning came up on my message logs, scsi: [ID 107833 kern.warning] WARNING: /pci@1c,600000/scsi@2/sd@0,0 (sd0): Oct 27 00:14:44 Error for Command: write(10) Error Level:Retryable ...
0
votes
1answer
139 views

Windows server's HDD Spin down daily/nightly - Does it makes sense?

A Windows Server 2003 R2 has the following hard disk configuration: - 3 internal hard disks attached to a 3Ware unit, configured in Raid 1 + spare unit - 3 external USB backup disks: 2 Verbatim 1TB ...
0
votes
2answers
97 views

A faulty Caviar Blue hard drive?

We have a small "homemade" server running fully updated Debian Wheezy (amd64). One hard drive installed: WDC WD6400AAKS. The motherboard is ASUS M4N68T V2. The usual load: CPU: an average of 20% ...
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votes
1answer
133 views

Display Power on hours of hard disk from shell

Is there a program which can display the power on hours of a hard disk from a *nix shell? I'm rewriting a server benchmark program, and this would be a useful value to compare.
0
votes
2answers
176 views

Create logical volumes from partitions in linux

I have a server running RHEL with below hard disks configuration. [root@localhost indika]# fdisk -l Disk /dev/sda: 150.3 GB, 150323855360 bytes 255 heads, 63 sectors/track, 18275 cylinders Units = ...
1
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3answers
410 views

How to identify faulty drive on a HP DL160 G6 - P410 Smart Array

I have a HP DL160 G6 Server with 4 HP SAS drive, firmware have been updated to the latest on the HD and the Smart Array... The issue im having is that one of the disk have a steady amber light turned ...
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votes
1answer
41 views

Formatting Hard Drive in windows

What is the differences between quick format and normal format in windows? I Just formatted my external Hard Drive by quick format and it took a minute to complete and then I just started formatting ...
0
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0answers
322 views

file system rootfs, which is mounted at /, reached warn status because it is 90% full

I have a dedicated server with OVH. Problem is that i keep receiving warnings that the / is getting full. Yesterday it was 89%, today it is 90% and tomorrow it will probably be 91%. It keeps ...
-1
votes
1answer
97 views

Can I improve speed in Hyper-V?

I use Windows Server 2008 R2 (it is host) with Hyper-V and a guest running Ubuntu 12.04 LTC. It is my settings: RAM 32768 Cores (virtual processes) 4. (I need 12) I also use virtual hard drive ...
0
votes
1answer
127 views

Raid0 assemble disk again?

Our server recently suffered a disk failure, so our hosting provider put a new Disk in with CentOS so we can login and see if we can recover the data. We had 2 x 120 GB SSD drives in software RAID0 ...
2
votes
2answers
429 views

How to find a compatible disk for HP server?

How to find a compatible disk for HP server? I own HP ML350 G6 server. I have found a spare parts list, but since there is no disk of size 300 GB 2.5 10K 6G (originally installed on server) I am ...
1
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0answers
15 views

No disk space on / (Debian Jessie) [duplicate]

I have a problem with disk space on my dedicated server. I have no disk space available on partition / root@server1:/# df -h Filesystem Size Used Avail Use% Mounted on /dev/root 96G ...
2
votes
1answer
675 views

High iowait for unknown reason

I'm having a hard time figure out the reason cause high iowait on my server. This is log of iostat -xm 5 5 Linux 2.6.32-358.6.1.el6.x86_64 (prod-1.localdomain) 09/28/2013 _x86_64_ (16 CPU) ...
2
votes
0answers
327 views

Add Zabbix S.M.A.R.T. monitor to ESXi 5

I have a ESXi 5.1 host with 3 Hard Disk (1 SSD, 2 Magnetic) and I want to monitor them, especially for the S.M.A.R.T Data, that is critical and preannunce an HDD break. Since I'm really unfamiliar ...
2
votes
1answer
39 views

Ubuntu Windows Azure mass storage

I just started using Windows Azure service. I created an XL machine, and I got 28GB on the primary partition and a whopping 600GB on the temporary partition. My application needs a lot more space ...
10
votes
2answers
374 views

What are 19mm high 3.5" hard disks called?

According to Wikipedia a normal 3.5" harddisk is 25.4mm high, but then there exist also a 19mm version, which I need for a HP ProLiant MicroServer. Looking at our resellers webshop I see the ...
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votes
1answer
88 views

SAS SCSI Converter [closed]

I recentely bought a Seagate Cheetah 146GB SAS ST3146755SS 10K Performance 15K RPM Hard Drive from EBAY and do have a computer that supports SAS. The problem is that I need to convert it into a SATA ...
2
votes
1answer
154 views

Is my hard disk failing?

I've just had the hard disk on my server replaced. It was part of a RAID 1 array. The sdb1 partition keeps failing every few hours now. # cat /proc/mdstat Personalities : [linear] [raid0] [raid1] ...
0
votes
0answers
220 views

High disk usage in CSRSS.EXE

I recently started working on the server for a certain software (Tango). The users complained that it recently became extremely low, so I used an application (ProcessHacker) to see the resource usage ...
0
votes
1answer
201 views

Currently unreadable sectors on RAID 5 linux drive

I have every 30 minutes smartd messages on /var/log/messages: smartd[3588]: Device: /dev/sdc, 176 Currently unreadable (pending) sectors This drive (sdc) is part of RAID 5 configured with mdadm. ...
13
votes
5answers
721 views

How do services with large ingest rates install enough hard disks fast enough?

Amazon, Facebook and Google must take in TBs if not PBs per day, so does that mean they have people continuously installing new hard disks and cables in new racks in the same way you might build a ...
3
votes
1answer
131 views

Consumer HDDs in a HP ProLiant DL180 G6?

Model: HP ProLiant DL180 507168-B21 Will a ProLiant DL180 G6 work with a single 1TB consumer hard drive in a caddy? Yes, I know I should use enterprise HDDs but we have a limited budget, and this ...
1
vote
1answer
116 views

What hard drives does a HP Proliant BL20p G3 Blade Server take?

Full name: HP Proliant BL20p G3 Blade Server 380634-B21 I'm currently a student and got a Proliant with no hard drives for £19.99. Could anyone point me to the right hard drives to get for it, I'm ...
0
votes
2answers
40 views

re-use after logical failure [closed]

I may not have enough information for a good answer but here goes. I have a home ubuntu server with one wd 1.5 TB hard drive that was about 1.5 years old. After a 2-week shutdown it wouldn't boot. ...
4
votes
4answers
252 views

I have a 3.46 TB Raid disk array, but when I setup windows server 2012, it only refers to it as 2TB

I have a 3.46 tb raid disk array, but in volumes it shows it only as 2.00TB What have I done wrong, and how can I fix it? Thanks Noam
1
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2answers
220 views

df -h disk usage of empty disk shows 188M usage ?!

I have an empty disk mounted as /data The df -h shows me that 188M are used while a du -h shows me 4,0K. root@marc:~# du -h --max-depth=1 /data 4,0K /data root@marc:~# df -h Sys. de fichiers ...
0
votes
0answers
136 views

Half of disk space missing on RAID1, all disks it seems to be ok

Hi there. I have a problem with raid array. I miss it a half. My disks layout is 2 x 250 gigabytes velociraptors (Array_0000) 2 x 1TB velociraptors (Array_0001) ....both connected in RAID1. OS ...
1
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0answers
290 views

Differences between hdparm --read-sector and dd with “Current Pending Sectors”

This was originally an "answer" to How to use hdparm to fix a pending sector? I'd been getting SMART notifications for the same "Current Pending Sector" for days. The dd solutions around weren't ...
0
votes
1answer
51 views

How to secure SAS drives that were removed from multiple servers?

I have a few SAS hard drives that were removed from different servers because the servers reported them as faulty (amber light). Some are from a RAID5 arrays and others are from a RAID1 setup. I have ...
1
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2answers
55 views

Server HDD size limits

When specs for servers such as the Dell PowerEdge 850 mention a max HDD size of 250GB (for SATA) is this an actual hardware limit or was it just the max size available at the time?
0
votes
1answer
176 views

Badblocks not displaying “Pass completed” after finishing

This is the command I am running to test a HDD with badblocks: badblocks -b 4096 -c 98304 -w -s /dev/sda1 The output is: [root@localhost liveuser]# badblocks -b 4096 -c 98304 -w -s /dev/sda1 ...