Questions tagged [hard-drive]

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

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How to restrict or hide users to specific drives only (not typical drives combinations)

How can I restrict users (not admins) to access to specific drives? I know there is gp that allows to restrict typical combinations of drives, like C, A, B, D etc... But I would like to allow all ...
Raul Taboraz's user avatar
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1k views

What could cause Nginx to write this much I/O?

I have a high-traffic webserver (up to ~50 page loads per second) running nginx, which passes HTML requests to a PHP-FPM backend and serves static assets directly. Under this load, I get a curiously ...
Manwe Sulimo's user avatar
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1 answer
384 views

Zookeeper best practice - using only SSD disks

we have HDP clusters version 2.6.0 / 2.6.1 ( hortonworks ) , and maybe in the future the version 3.0 I searched a lot in HORTONWORKS documentation , but not found the details about using SSD disks ...
shalom's user avatar
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Synology NAS to Mac transfer: rsync creates identical folders on the same disk (NAS rsync and Mac rsync yield different hexdumps)

Summary: I use the following setup to backup data on a Synology NAS to a remote disk via rsync. First backup local: rsync initialised on the Synology NAS to the disk (mounted on the NAS). Future ...
Nick The Swede's user avatar
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2k views

Supermicro server not booting with OS

We have purchased Supermicro X9DRi-LN4F model and installed Ubuntu 18 and during installation it finds the HDD and created partition and all goes well, but as soon as installation finishes and it ...
Farmi's user avatar
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377 views

Windows Server 3 or 4 Disk Parity Configuration

right now I've got an Ubuntu Server with a 3x4TB Software Raid 5 Configuration. I came to the conclusion, that the best for me would be to switch to Windows Server. I also researched that RAID 5 ...
Canonip's user avatar
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Rsync freezes when reading from HDD, but can write to it without problems

I have SSD(system drive) and HDD. The HDD is used as backup for the SSD. I had to reinstall my Ubuntu 16.04 and now I can not transfer my backup from the HDD to the SSD using rsync(I have done it ...
CuriousGuy's user avatar
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mounting hard drive that is passed to VM

I'm running proxmox and I was previously passing a hard drive (ext4 data drive) as iSCSI to a linux VM. Everything was good. Then I decided to pass the PCI SATA controller to the VM instead of just ...
sdstack's user avatar
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Resize non-root partition without deleting it

Preface: I am very familiar with gParted, parted, fdisk; Windows system. I wanted to increase the size on a Ubuntu 14.04 disk, virtualized through ESXi 5.5 and disk connected as "Independent, ...
aPugLife's user avatar
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Spin down idle disks on Server 2012 R2 Hyper-V host

Running Windows Server 2012 R2 as a Hyper-V host. I want hard drives to spin down after they have been idle for some time. (None of these hard drives are used by any Hyper-V VMs) The applicable ...
Ned Martin's user avatar
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big difference size and size on disk

I have storage problem on my vps server. We are transferring data from old vps server to new vps server. On old vps server I want to transfer F partition with all directories inside. On multiple ...
user7403958's user avatar
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177 views

How to get usbmount to mount to a specific folder

I use Ubuntu server to run my Plex server. I’m wondering how I can get usbmount to mount my external hard drive to a specific folder. I have two partitions /dev/sdb1 and /dev/sdb2. I need sdb2 to ...
djs115's user avatar
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332 views

mdadm raid5 disk disabled, state clean, smart passed

i'm running a raid5 array with 5 disks. One disk got disabled. dmesg : ... [Tue Dec 5 01:02:08 2017] md/raid:md0: read error NOT corrected!! (sector 15263288 on sdb1). [Tue Dec 5 01:02:50 2017] ...
t.joe's user avatar
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1 answer
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Windows Server 2008 SP2 missing disk space

Two days ago, I logged into one of the domain controllers and found that the server has only 500 MB of free space of total 30 GB assigned. Did some house keeping and increased it to about 2.5 GB. ...
mutukrp's user avatar
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Error 0x8007045D when trying to copy a file

I have a Windows Server Essentials 2012 R2 machine and I'm trying to copy a file that is 4.00GB on an NTFS drive and am getting the following error: Error 0x8007045D: The request could be performed ...
WhiskerBiscuit's user avatar
1 vote
1 answer
736 views

Windows 2008 server installation asks for Hard Drive Drivers in Dell Power edge sc1420

We are having blue screen from windows 2008 server, even with Safe Mode, so we are trying to repair the OS, but it keeps asking for HD Drivers, we have a Maxtor 6L160M0 (Pretty old, I know) and we are ...
ricardorios's user avatar
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1 answer
336 views

HP P400 and Sata disk

I have an old HP ML110 server with OEM windows Server license that I have to use for a few more months. Internal raid controller is causing me some problems so I want to buy another hardware ...
Chriss's user avatar
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Cluster disk shows offline , where as I can access the disk from windows explorer

I have a Log drive on SQL server which I can access the files through windows explorer. The Failover cluster manager shows that the log drive # is offline. When I try to bring the Cluster Disk# ...
Daniel's user avatar
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How to re-add removed drive to raid 1 mdadm array on another machine?

I recently was having trouble with a server randomly shutting down. I figured it was signs of disk failure, so I went about removing and swapping a drive from the raid 1 mdadm array. There were two ...
Hugo K's user avatar
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SMART support is: Unavailable - Packet Interface Devices [this device: Reserved] don't support ATA SMART

So, I have a server which has 7 hardisks, each and everyone of them has smartmontools enabled, except the 7th hardisk (/dev/sdg). Tried force enabling it, did not work. [email protected]:~# smartctl -...
Hunter.S.Thompson's user avatar
1 vote
1 answer
54 views

Disk transfer rate random behaviour

Okay so I am facing a strange situation with a server build I've completed. Prior to getting a Tyan S7012, sticking it in a case with some RAM, I didn't notice any strange disk behaviour. But now, ...
FoolishlyWise's user avatar
1 vote
1 answer
359 views

Safely restore disk labels and raid0 in Linux (CentOS 7) from external disk enclosure failure

The SAS cable connecting my external disk enclosure to the server was broken so I replaced it with a new one. However, after the re-connection all the disks came back with a different label, for ...
roymaztang's user avatar
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38 views

Arrays removed by removing one disk?

I had an issue this weekend with a server at work, one of the Datastores (Raid1 2x300GB) on esxi filled up and the guest OS got suspended, we had nothing to attach an NFS to the esxi and all disk ...
Guizado's user avatar
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1 vote
1 answer
577 views

Replace failed RAID 1 Drive on Intel Platform

Good afternoon, I have a Intel Server running Windows 2008 R2 Standard. It has a RMS25PB080 Raid controller card in with. It has two logical drives, a RAID 1 and a RAID 5. The one harddrive on the ...
Adrian's user avatar
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262 views

Can you have an MBR partition and a GPT partition on the same RAID 5 VHD in Windows Server 2008 R2?

I have a Power Edge T610 with a PERC 6 RAID 5 Array, recently i posted a question about expanding the array with other drives and was able to use OMSA to add additional drives to the array and then ...
Michael Wright's user avatar
1 vote
0 answers
1k views

Server 2008 R2 does not boot and won't restore

A Server 2008R2 machine was found restarted, asking to insert a bootable disk. I booted from a DVD and tried to restore from a backup image made a day before to a separate HDD (with repartitioning and ...
Yuri Makassiouk's user avatar
1 vote
0 answers
1k views

Read only file system after every reboot - centos

Some time ago I got disk full problem and after that everytime I reboot my centos server, the system loads with read only system files. Running mount -o remount,rw / will solve my problem. But ...
user1772630's user avatar
1 vote
1 answer
1k views

HP MICROSERVER GEN8 819185-421hard drives not recognized in the front bay

I bought that server and a SEAGATE ST1000DM003 1TB Hard drive. I've installed ubuntu 14.04 LTS on a SD card on the server. It seems that the server doesn't recognise the 1TB hard drive in the front ...
roshkattu's user avatar
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Is my drive good or going bad?

I just ran SMART on my server's drives but I'm not too sure how to interpret it. My results seem like the drive is doing fine, but I would like a second (or third) opinion, just to be safe. Here are ...
Felix Jen's user avatar
  • 403
1 vote
1 answer
49 views

Our app lags "randomly" due to Disk I/O issues?

We have made an app that requires hundreds of images downloaded for each user every day. Our basic server setup is as follows: Loadbalancer -> Nginx -> Databaseserver However, our app "randomly" ...
Morten Stulen's user avatar
1 vote
0 answers
125 views

M5015 Disk controller - Replace failed disk used working disk

I have an IBM X3200 M3 machine with a M5015 SATA Disk controller (RAID 5). One of the disks has failed ie orange light flashing on the disk. I intend to replace the damaged disk with a used disk of ...
topster's user avatar
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1 vote
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713 views

Best way to remove drives from MDADM raid array

I have a situation with a RAID array; I'm concerned that the drives in the array are going to fail soon, and given their age, I would rather replace them sooner than later. The problem I have, is ...
Caturday Saint's user avatar
1 vote
0 answers
1k views

HD recognized by BIOS but not Linux or GParted

I have an old (2007) Dell Precision Workstation 690 with Ubuntu 12.04. It has 2 mirrored 139G SAS drives for OS and 2 WD Black 2TB data drives that were formatted ext4 and rsynced and had my virtual ...
jerryrig's user avatar
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1 vote
0 answers
465 views

Replacing a HDD in FreeNAS

I got a message that said one of my hard drive was degraded and im trying to figure out how to check which drive it is. I did zpool status and I got this zpool status pool: BiggyD state: ...
Dominik Brandys's user avatar
1 vote
0 answers
2k views

How do I interpret a very high Avg. Disk sec/Write perfmon value?

Short version: Is the perfmon screenshot shown below enough evidence to say "something is wrong with your storage system"? Long version: I am debugging a performance problem: Some SQL Server query is ...
Heinzi's user avatar
  • 2,237
1 vote
1 answer
921 views

Disk errors Event ID 51 on LSI MegaRAID 9240-8i in RAID 1

I am working on a case of recurrent disk errors. Server is running Windows Server 2012 R2 Standard. There are two main disks on a mirrored RAID. There is also an additional drive that is used for ...
RAdministrator's user avatar
1 vote
0 answers
99 views

Partitions not recognized when installing Kubuntu 14.04 over complex RAID setup

I have three identical HDDs. Using a ROM utility, I configured the use of 90% of each of them as a RAID 5 array, and the other 10% as a RAID 0 array. That is, each array uses some area on all three ...
einpoklum's user avatar
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1 vote
0 answers
805 views

how to filter sar -d disk output tidily

sar -D output-I would like a suitable command to run alongside stress -hdd but this is the output which sar -D 1 10 gives. I have filtered it using both awk |'NR > 1 {printf "%4s%8s%8s\n",$13,$14,$...
Rory's user avatar
  • 11
1 vote
1 answer
600 views

Ubuntu 14.04 Cloud Server - Disks gone Read Only

Disks on our cloud server with our web host went read-only this morning for no apparent reason. Following that a reboot to try and rectify the issue resulted in a non-bootable system. Our Web Host ...
Matt Houldsworth's user avatar
1 vote
1 answer
691 views

Windows Server 2012 hide external HDD for non-admins

I am setting up a server where people connect to via Remote Desktop. It uses AD DS and uses an external HDD with a share on it for people's data. However when these people log on, aside from the ...
Limnic's user avatar
  • 141
1 vote
0 answers
61 views

(Unexpected?) blkio controller behavior

I'm using docker 1.4.0 with lxc-1.0.6 and cgroup-lite-1.1.5 on Ubuntu 12.04. I have 3 hard disks (/dev/[sdb-sdd]) that I write to from 3 distinct containers. They have only one XFS partition, mounted ...
ivotron's user avatar
  • 111
1 vote
1 answer
405 views

Using Seagate 3TB drives with a Dell PERC 710 - do I have to worry about align and sector size?

I'm going to setup our new server with 8 3TB HDD from Seagate. They come, as far as I know, internally with 4K sectors. I've run this past weekend some burn-in tests on the disks, before setting them ...
Rodrigo Gómez's user avatar
1 vote
0 answers
49 views

smartd rule does not work

I have an issue with smartd. I've studied its man page, and then I've set the SMART daemon to run long test of the hard disks two times a month and alert to the specified mail address in case of ...
dr.Equivalent's user avatar
1 vote
0 answers
1k views

XenServer 6.2 Read Only and Slow Disk I/O

I virtualized a datacenter a few months back and we have a pool of 3 HP DL360 G5 servers, each with 32GB of Memory and dual Intel Xeons. Recently we have been experiencing 2 issues, the first of which ...
Riley's user avatar
  • 103
1 vote
0 answers
915 views

VMware ESXi multiple I/O latency warnings

VMware ESXi 5.1.0 server showing multiple warning events: Device mpx.vmhba1:C0:T0:L0 performance has deteriorated. I/O latency increased from average value of 3913 microseconds to 530954 ...
Ash's user avatar
  • 458
1 vote
0 answers
3k views

HP Dl360e Gen8 Not Detecting Hard Drives

I have a new HP Proliant DL360e G8 and it is not detecting the hard drives. We are using both non-hp, and official hp hard drives from an older server (DL120). Hard drives are 3.5" and they are not ...
Oliver's user avatar
  • 51
1 vote
0 answers
110 views

Unable to access disks in rhel 6.5

I work for a biology lab. We recently bought a new microscope that produces an enormous amount of data - it is simply not feasible to store it on a desktop. So, we bought a storage server - the idea ...
Mathew C.'s user avatar
1 vote
0 answers
747 views

Debian mail server's Maildir folder with too many files causing disk I/O to go on high load

I have a Debian mail server running Postfix, Courier and Maildir, with disks on EXT3 filesystem. I have noticed that when I use my webmail application (Squirrelmail, in this case). It gets some kind ...
gtbono's user avatar
  • 237
1 vote
0 answers
1k views

Virtual Allocation Unreasonably High

Just upgraded our pool to Xenserver 6.2 and installed a brand new host, also with Xenserver 6.2. Was excited about the new features since Xenserver was fully open-sources (over-allocate ram, ha live ...
SnakeDoc's user avatar
  • 580
1 vote
1 answer
1k views

Disk access slow

I have a process running in a CentOS 6.3 server. When logging is turned on, the process slows down drastically. The logs are being written to /tmp [root@localhost src]# hdparm -I /dev/sda /dev/sda: ...
nakiya's user avatar
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