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0answers
15 views

cassandra data migration from regular drive to SSD on production server

we want migrate our data from regular drives on production server to new SSD drives. how we can do that without taking down the node no longer than 4 hours(hinted hand-off is 4 hours) our data is in ...
1
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0answers
8 views

Why is Apache refusing to show new pages for one directory? This is as spooky as I've seen from Apache in a while [duplicate]

I tried to take a step back in Why is Apache not showing a new page? , from an original question that was loosely as follows: A client has a website and makes periodic requests to add a page. The ...
1
vote
2answers
80 views

How to list basic information about disks (cylinders, heads, sectors, sector size) on Windows 7 and 10

On Linux, fdisk supplies this information without any problems. I can't seem to do the same anywhere in Windows, nor (at a glance) in diskpart which is intended to succeed/replace fdisk. I need to ...
1
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2answers
36 views

One disk member of two Disk arrays

I will start with my question and then make a short example: Is it a good idea to split a disk into multiple partitions and create different disk Arrays (raid1/raid5) with those paritions? Are there ...
2
votes
1answer
40 views

How can i split a partition on Ubuntu?

I just purchased a brand new server on OVH with disk specification: 2 x480GB of SSD SOFT. When i do df -h, the output is: Filesystem Size Used Avail Use% Mounted on /dev/root 20G 13G ...
0
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0answers
77 views

Installing Ubuntu and PostgreSQL database on different drives

I just received a new root server with the following drives: Disk /dev/sda: 480 Gb Disk /dev/sdb: 480 Gb Disk /dev/sdc: 240 Gb sda and sdb are set up on RAID-1 and what I want to do is setup Ubuntu ...
0
votes
0answers
13 views

/dev/mapper/vg-root shows 100% usage [duplicate]

/dev/mapper/vg-root shows 100% usage even when the du command shows that more than 90% disk space is available, this is a 200GB disk.I am running CentOS 7.x please let me know the issue ? [fg@79732 ...
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3answers
8k views

Identifying a physical disk from its Windows device description

I have intermittent bad block errors in my Windows SBS 2003 system event log. The error description is The device, \Device\Harddisk4, has a bad block, and I would like to be able to authoritatively ...
2
votes
3answers
18k views

Safely remove a disk from a spanned volume

I'm running Windows Server 2008 R2 and converted physical disks to dynamic disks and combined them to a spanned volume. Yesterday, one disk started throwing S.M.A.R.T Errors, so I decided to get a new ...
2
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0answers
42 views

How to dismount a VHD that has been absorbed into a Storage Space

Normally in Windows, you can create a Virtual Hard Disk (VHD), see it in the Disk Management, right-click, and remove it: No problem. Storage Spaces Hides Disks I want to test the resiliency of ...
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votes
3answers
63 views

CentOS 7 server rebooted itself into rescue mode - how can I find out why?

I've switched it back to regular boot and it seems to boot up fine. So why did it reboot? Running "last" doesn't even show a log OF a reboot. What does that suggest? When I try "smartctl -a ...
1
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1answer
291 views

/home /opt /tmp /usr /var on a single partition of another hard drive Debian 8 [closed]

I have a production server for which I would like to move the /home, /opt, /tmp, /user, /var to the ~300GB partition specially created for this purpose. No straightforward explanation found on how to ...
1
vote
1answer
74 views

ZFS on a single external HDD drive: setup / tutorial and workflow [closed]

There are many tutorials on ZFS but I couldn't find a single one which covers the changes in commands when one uses only a single drive. I know by now that the parameter copies=2 is used but what ...
35
votes
2answers
2k views

Unable to write to disk but disk isn't full

I am using Ubuntu 12.04 and can't write to any file, even as root, or do any other operation that requires writing. Neither can any process that needs to write, so they're all failing. df says I've ...
0
votes
0answers
16 views

Dell Disk Group Configuration for Microsoft Business intelligence

I'm looking to configure a couple of 12-core 64GB Dell R430s for business intelligence using Microsoft Analysis Services (and SQL Server in the night time). One will be production, and the other will ...
0
votes
2answers
857 views

Unable to initialize BlackArmor after running iSCSI Manager and Windows 7 iSCSI Initiator

I want to add a 12TB NAS to my current iSCSI, which already controls an Iomega StorCenter ix2-200 1TB NAS. I've connected to the new NAS via Windows 7 iSCSI Initiator. When I open Disk Manager it ...
0
votes
0answers
63 views

Unable to access logical drive presented to Windows 2008 R2

I have a virtual disk that I'm presenting as a LUN to a Windows 2008 R2 host. When I log into the host after presenting the disk and go to disk management it shows up as 4 different primary ...
0
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1answer
38 views

md raid10: how to make sure that replicated data is stored in right place?

When creating classic mirrored raids, it's usual to locate copies of data on disks of different kinds. In this case you would use a mix of disks of different series and manufacturers. That reduces the ...
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2answers
1k views

How to identify EBS volumes vs local volumes on running EC2 instance

On a running EC2 instance, how do I identify EBS volumes and local disks ? I would like to identify them from shell. fdisk, lsblk is not helping to pinpoint the EBS volumes only. Lets say I have ...
2
votes
1answer
971 views

Where can I find dskprobe.exe for Server 2012 R2?

As the question suggests, where can I find dskprobe.exe for Windows Server 2012 R2? I need dskprobe to recover a deleted partition and I can not find the application anywhere on my server and looking ...
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6answers
87k views

Cleaning up a server's C:\ drive… what are the best practices?

I have a c:\ on a server that is filling up, most likely due to the accumulation of patches over the years. I'm told by Microsoft PSS Support that it is unwise to simply delete the compressed ...
3
votes
2answers
2k views

How can i create a low disk space alert on Windows Server 2012 R2 Datacenter

I have a Windows Server 2012 R2 Datacenter virtual machine running in Azure. Recently, one of my disks ran out of space. How can i setup a notification system to alert me when one of the disk drives ...
3
votes
5answers
4k views

Re-sizing disk partition linux/vm

I VM Player running a linux guest and I was wanting to know how do I expand the disk? In the VM player I gave more disk space but I am not sure how to mount/expand/connect the new disk space to the ...
1
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0answers
235 views

VMWare ESXi and iSCSI via FreeNAS

I've recently been setting up a sandbox ESXi environment with a VM running FreeNAS providing a volume which is connected as a datastore on the host via iSCSI. I've created a VM on this datastore and ...
0
votes
2answers
374 views

Two Azure disks have the same LUN

I am trying to set up SQL Server on an Azure VM (that has an SSD) per the following articles: Performance Best Practices for SQL Server in Azure Virtual Machines Using SSDs in Azure VMs to store SQL ...
0
votes
0answers
88 views

Shrinking and extending disks on Server while running?

So I have a server with Hyper-V and a Drive C: (OS) and D. Drive D stores all of the VHDs that I run. Drive C shows up as Disk 0, and D as Disk 1 under Disk Management respectively. Now Drive D gets ...
0
votes
1answer
186 views

converting physical windows 2003 server through disk to vhd tool to hyper-v server

i am trying to do P2V conversion through disk to vhd tool. conversion is successful but after conversion when i attach the disk c: drive or d: drive its shows additional drives in disk management same ...
1
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1answer
742 views

Extending LVM Volume Groups with Physical Extents & pvresize

I have two somewhat related LVM questions regarding extending LVM managed volumes. Firstly, from (edit: old) documentation that I've read about LVM and the relationship between Volume Groups and ...
2
votes
1answer
193 views

EBS volume mount point should be disk or partition

With community CentOS 7 HVM image, after adding another EBS volume to my EC2 instance, lsblk command shows this NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT xvda 202:0 0 8G 0 disk -xvda1 ...
0
votes
1answer
42 views

Combining partition types lvm

I have an older disk setup that was made with msdos parition types and it appears that they kept growing the same disk in order to grow the lvm however it ran into an issue where it got to 2TB and ...
0
votes
1answer
103 views

get physical disk name for a file

When I opened disk management in Windows Server 2008 I see Disk 8 G: H: Disk 9 H: Disk 10 H: I Now, I have few files in H: drive and I want to know which disk it belongs to. I have to do it ...
5
votes
1answer
7k views

LVM is reporting I/O errors, but the disk reports no problems. Argh

I've started seeing errors reported by LVM on certain Logical Volumes (and by Xen when attempting to create virtual machines on these LVs). But I've run tests on the disk, and can't see any hardware ...
0
votes
1answer
3k views

htcacheclean doesn't seem to be cleaning the cache

I'm running mod_cache with apache 2 on a fairly high traffic'd site. I've set the htcacheclean to run in demon mode every 10 minutes to keep the cache at 4GB. It's currently at 15GB and doesn't seem ...
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votes
3answers
32k views

Hyper-V Server R2 - Disk management MMC returns RPC Server is unavailable

does someone faced error "The RPC server is unavailable" during connecting to Disk management MMC console to Hyper-V Server R2? Servers are in the same AD domain and MMC console is enabled on Hyper-V. ...
0
votes
3answers
1k views

“Access is denied” trying to bring VM-attached USB hard disk back online in Disk Manager

Windows Server 2012 R2 Hyper-V with CentOS 6.5 and CentOS 7 VMs. In Disk Manager, I right-click my USB hard drive and pick Offline. In Hyper-V Manager, I right-click either CentOS VM, and I connect ...
0
votes
1answer
58 views

Why is /tmp not written to /var

My CentOS 6.5 server has the following setup; $ df -h Filesystem Size Used Avail Use% Mounted on /dev/dv1 8.0G 713M 6.7G 10% / /dev/mapper/vg00-usr 9.9G 2.5G ...
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votes
2answers
206 views

How to find who is using disk space

I have 2 disk on my vps one is 40 GB and other is 80 GB, today I see my 40GB disk is 100% full, I cant understand what is using that space. here is full info [root@topsites]# df -h Filesystem ...
0
votes
1answer
258 views

What happens when I “offline” a disk and is there a difference between diskpart.exe and the disk management snap-in?

What actions does Windows take when I "Offline" a disk in the Disk Management GUI? What actions does Windows take when I "Offline" a disk in Diskpart? Are there any differences between the two ...
0
votes
1answer
740 views

Resize error : ext2fs_open2: Bad magic number in super-block

I have a server server1 running 8GB root partition I have taken the ami of this server1 and created anothe server2 but changed the root partition to 60GB 3.I wanted to extend the linux partition in ...
0
votes
1answer
428 views

Preeseding a debian stable install with a complex partitioning scheme - missing physical volume

My personal systems run on: An open /boot partition separately random key encrypted /tmp and swap partitions and a password encrypted btrfs lvm volume holding everything else. My latest project is ...
7
votes
1answer
489 views

“Mandatory” free space on a SAN?

I'm not an expert of SANs, I'm writing here to get some clues on continuous and exasperating problems we're having which our supplier seems not to be able to solve. we own an ENHANCE ES3160P4 SAN ...
0
votes
1answer
651 views

Moving a large spanned volume across vm's

Current situation: Windows server 2008r2 running under VMWare esxi5.5. 3TB drive consisting of 3x 1TB virtual disks under a spanned volume. (D) The drive contains approx 1,9TB of data. D drive hosts ...
0
votes
1answer
23 views

Is it possible to set the backing FS directory of a specific LXC?

So they don't all go to the same folder (e.g. /var/lib/lxc)? This would let the user take advantage of other partitions/disks when the default one becomes full. lxc version: 1.0.6
1
vote
1answer
253 views

Create Windows Recovery Image on Windows 8.1

I'm deploying some Lenovo ThinkPads for a small organisation. I want a simple recovery option if a user munges up their system. Luckily, they come preconfigured with the windows recovery partition ...
-1
votes
1answer
338 views

DPM Disk Allocation

Very new to DPM and have a query regarding 'disk allocation'. When on the 'Management' screen the 'Disk' portion shows that the 'Unallocated space' is 2.5Tb and is showing a yellow triangle with an ...
3
votes
1answer
300 views

Conversion from Basic failed

Hi I am in an emergency situation right now. I DO have full backups of everything, but I am trying to avoid a complete reinstall of the OS and AD. I have a simple server with one drive that was set ...
2
votes
2answers
728 views

Cannot shrink partition on Windows Server 2012

I have the following issue. I am trying to take space off of VMs and add it to the OS partition. However, whenever I try any of the VMs it will not let me shrink the space so I have free to expand the ...
6
votes
3answers
714 views

Is disk serial readable from supermicro chassis?

We are working with a hosting company for managing our dedicated servers. We asked for a replacement disk on one of the servers by providing the serial number. They took out 2 other disks instead and ...
2
votes
3answers
68 views

Accessing multiple disks under single virtual partition?

I have disks as below on my Debian server: /dev/sda1 276M 29M 233M 11% /boot /dev/sdb1 917G 793G 79G 92% /home /dev/sdc1 1.8T 1.7T 79G 96% /home2 /dev/sdd1 1.8T 1.7T 79G 96% ...
3
votes
2answers
3k views

How to create a chained differencing disk of another differencing disk in Virtual Box?

How to create a differencing disk (a chained one) from a disk that is already a differencing image? I would like to have: W2008 (base immutable) -> W2008+SQL2008 (differencing, with SQL ...