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Questions tagged [mirror]

The tag has no usage guidance.

2
votes
1answer
32 views

Can ZFS mirror a single disk pool automatically? [closed]

I'm getting ready to add another server to my home network. I currently have one storage drive for it. I want to add another one to mirror the first drive, but can't purchase the second drive for a ...
2
votes
1answer
28 views

How to implement partial mirroring in nginx?

I want to test an early new version of a server, and to do so I want to mirror part of the real requests that come to the production server on my testing server. The mirror module allows me do to ...
3
votes
1answer
63 views

Btrfs Raid10 Two drives have failed. What are my options?

Here's my story: I noticed read errors on one of my four RAID10 Btrfs drives (/dev/sde). This occurred when I was attempting a backup using btrfs send/receive. I bought a new hard drive of the same ...
0
votes
0answers
30 views

How to force raid1 mirror to stripe on read

I use RAID1 - mirror long time. I have beleaved yet, that RAID1 does stripping on read operation for improve the speed. While migrating form 160GB disk to 3TB mirror, I started the file copy, ...
0
votes
0answers
27 views

Mirror files without folder

Hi im trying to mirror the content of a folder in my server to a remote location using lftp, but every time I execute the mirror script it sends the files and the folder, how can I avoid sending the ...
0
votes
0answers
22 views

Can a removed PV from a LV mirror leg (from root) be used to clone the system it came from?

I asked this question in askubuntu.com and thought serverfault would be a better place to ask the question. So here it is: If I unplug dev/sde1 (see image of setup) -- one of my PV that holds one of ...
0
votes
1answer
80 views

Restored a crashed server from a image copy almost 8 months old and [closed]

This was a DC, I also have BDC. Got the Ransomware virus on the server. It was too much work, so I mirrored an 8 month old drive and got the server back up, restored the data from backup, but this ...
0
votes
0answers
25 views

how to restore DIT state from ldif on openldap mirror mode

I have a deployment with multiple (about ten) openldap servers in mirror mode. I'm doing DIT backup of "dc=domain,dc=local", with slapcat -b dc=domain,dc=local -l /tmp/dit.$datetime.ldif When I'm ...
0
votes
1answer
42 views

ZFS - 2 Striped mirror set to 1 mirror set, how?

Currently I'm running a ZFS striped mirror set: NAME STATE READ WRITE CKSUM data ONLINE 0 0 0 ...
0
votes
2answers
142 views

How to mirror aws ec2-instance (production) to my local ubuntu desktop

i have aws ec2-instance live server (which runs on drupal CMS), i want to make a staging server for that live on my local ubunut desktop
0
votes
2answers
438 views

Add raid 1 from an existing drive without losing data

I recently added a new hard disk on my server and wanted to add it on my existing hard drive forming a RAID 1. I wanted to use Disk Management as it will be the easiest way to mirror the existing one. ...
1
vote
1answer
870 views

How to add more physical disks to a mirror vdev (to increase redundancy)?

Can more physical drives be added to mirror vdevs after a zpool has been created? For example, if a zpool is created using: zpool create test_pool mirror /dev/sd0 /dev/sd1 mirror /dev/sd2 /dev/sd3 ...
0
votes
0answers
1k views

recursively download multiple directories with wildcards via lftp

A simple thing really, I'm on ubuntu and tried different ways. ssh is not allowed on the machine, sftp only. Wget doesn't understand the ftp:// for some reason, so other SF posts I found didn't net ...
2
votes
2answers
2k views

Using exotic setups to maximize capacity (when using different sized disks) in ZFS raidz

I have 2 x 4TB disks and 3 x 6TB disk which I want use with ZFS. My objective is to maximise the usable storage space whilst allowing for a single disk failure. Ideally a raidz setup would be used ...
4
votes
1answer
160 views

Terrible (~1.4x vs expected ~2x) random read performance in new ZFS mirror (raid1)

I am testing a ZFS mirror using FIO (Flexible I/O tester) to understand the random read scalability of ZFS mirrors. The primary and secondary caches have been set to none as the application I use ...
2
votes
0answers
920 views

LVM vs ZFS (vs BTRFS) for home file server [closed]

I am rebuilding my small fileserver (Athlon 5350 + 4GB ddr3 running CentOS 7) replacing several second-hand hard driver with WD Red. The server is mainly used for personal files (documents, pictures), ...
1
vote
1answer
847 views

zfs change block size without going offline

Given a raidz1 vdev on FreeBSD 10 with this config: root@gw:~ # zpool status pool: data state: ONLINE status: One or more devices are configured to use a non-native block size. Expect ...
0
votes
1answer
451 views

Creating version-specific Ubuntu Mirror

I have been tasked with creating a local Ubuntu mirror for my company. However, we do not need the entire archive (like 10.04, 12.04). I am currently following this tutorial from the Ubuntu community: ...
5
votes
1answer
3k views

Adding more mirrored vdevs to a ZFS pool on Ubuntu

I'm on Ubuntu 16.04.1 LTS and I have a ZFS pool named unas containing two mirrored drives. I have now attached two more drives and I want to add these new drives to my unas pool as a pair of mirrored ...
0
votes
0answers
120 views

LVM Raid1 mirror leg lost

Odd one. I have 3 x 3TB disks in my server. /dev/sdc[1] is a raw 3 TB disk /dev/sda2 is /boot /dev/sda3 is 3TB /dev/sdb1 is 3TB sda3 and sdb1 were a raid1 mirror The server was up for some time, ...
-1
votes
2answers
4k views

Configure RAID 1 on ThinkServer TS140

I am setting up a server for a business, and one of the specifications that they have set is a RAID 1 configuration for the two drives in the machine (the OS will be installed on this mirror). One of ...
-1
votes
2answers
309 views

MS SQL Server 2 identical databases on different servers replication or mirroring to each other possible? [closed]

Hi: I have one free version of SQL Server 2012 express database running on Amazon AWS with 1 CPU and only 1 GB Ram . As you can see the CPU and RAM power are barely enough for my PHP scripts running ...
0
votes
1answer
146 views

SQL Server Mirror issue on Mirror side

Team, I am having an issue on one of my Mirroring environment. It is SQL2008R2. DB mirror was somehow broken between principle and Mirror side. Someone(Not sure who is he/she due to offshore support) ...
1
vote
1answer
790 views

How Can I Create a Private OpenBSD Mirror?

How can I create a private OpenBSD mirror. I'd like my mirror to have all the packages of the latest release for my preferred architectures (amd64 and i386) and everything else contained in a typical ...
4
votes
1answer
471 views

Is it possible to mirror a MediaWiki article from another wiki?

I have two MediaWiki installations on two different domains, both on the same server but with different databases. Is there a feature or extension that will allow me to automatically mirror the ...
0
votes
1answer
2k views

lftp reverse mirror silently skips files in subfolders

I'm using lftp to push content to an ftp-only web-server. It worked to upload the files recursively at first, and even incrementally. Any idea why this would skip files changed in a subfolder, but ...
3
votes
1answer
732 views

Can I effectively clone my hard drive by using mirrored partitions in Win Server 2008?

I have a server running Win Server 2k8 R2 Foundation, functioning as a basic file server and CAD software licensing server, with the following situation: Originally installed with 2x 250GB physical ...
1
vote
0answers
42 views

how to work with actual hard drive when mirror drive stop working linux?

i have linux/Ubuntu server 2 hard drives mirror with raid. unfortunately one partition is having EXT-fs4 error (/dev/md2) .. aborting journel frequently.. after reboot it fixes but happens again.. ...
1
vote
1answer
435 views

Mirror team foundation server 2015 git repo to bitbucket

I have a tfs 2015 server with a git repo. When a developer carries out a sync, I would like tfs to also push the changes to bitbucket git repo. Can anyone suggest any solution to this?
0
votes
1answer
77 views

Which directories to exclude before full Ubuntu synchronization?

I have two Ubuntu server which I want to synchronize so that I can run the second server when the first server is down. I want to do the synchronization using rsync. But I read, not all the ...
7
votes
6answers
8k views

debian mirror : Hash Sum mismatch

I have a mirror server that I maintain in school. $ uname -a Linux CSE-Cloud01 4.0.0-1-amd64 #1 SMP Debian 4.0.2-1 (2015-05-11) x86_64 GNU/Linux $ sudo apt-get update ...... W: Failed to fetch ...
3
votes
1answer
912 views

Distributed mirrored filesystem under FreeBSD

Can someone share their experience in building a distributed mirrored filesystem between multiple FreeBSD machines? I. e. we have two (three, four...) servers and special partition "part1" mounted on ...
1
vote
1answer
216 views

Subversion mirror has issues. Possible to back out most recent revisions on the mirror and then resync?

It appears some fat-fingering of Subversion configuration may have lead to a Subversion mirror being corrupted. Details: We have a set of Subversion repositories hosted on a master server and then ...
0
votes
2answers
330 views

Mirror Server IIS

We are keeping two IIS servers, each has a copy of sites.Both having DNS entries. How can I switch to immediately upon a failure. The objective is the secondary server should start running when the ...
-1
votes
1answer
120 views

How do I set up a geographic mirror site for LAMP?

I have a server that's running on the standard LAMP stack. I have web services that read a MySQL database to control access to certain content. If the content is allowed to be accessed then it is ...
2
votes
1answer
3k views

How to reacreate the EFI partiton and mirror and existing system partition of an GPT disk?

I have the following setup (very well possible that this is no good practice but it is the given situation): There were 2 x 3TB dynamic GPT disks in a Windows server, Disk0 with EFI (~200 MB), System ...
1
vote
1answer
905 views

lftp mirror leaves empty folders on remote

My script is set up with this for lftp lftp -p 2218 -u $login,$pass sftp://$host << EOF set mirror:use-pget-n 5 mirror -c -P5 --depth-first --Remove-source-files --log=/home/dog/...
0
votes
1answer
40 views

CentOS Mirror Update Just One File

I host a local mirror of Centos5 and Cento6 to run updates of our servers. I do not update them regularly, though, to provide a stable environment for our production servers. However there are times ...
-4
votes
2answers
198 views

How to reliably and conveniently mirror 2 drives in hotswap hdd racks (likely without RAID1)?

I have the following situation: Need to store 1 original + 1 copy for data sets that are 1-2 TB in size Need to use consumer SATA drives, 1 for original, 1 for copy Need to store 50+ such data sets ...
6
votes
3answers
854 views

Best way to clone a Linux system

I've just finished setting up a Debian system running on an embedded device. It has custom partitioning, numerous config file changes, web content, and a couple of applications compiled from source. ...
7
votes
3answers
10k views

How to get robocopy summary information involved in powershell?

I have a quick script written to compare file differences across servers, and then give a prompt for whether to mirror the changes. I'd like it to intelligently NOT prompt for copying if there aren't ...
0
votes
0answers
251 views

Windows 2008 Server is not booting from primary mirrored disk

We have a Windows Server 2008 with mirrored disks (RAID 1). Disk 0 & Disk 1. Last week, Disk 0 failed so we replaced that with new one. Completed mirroring from Disk 1 to Disk 0 using Diskpart. ...
13
votes
1answer
2k views

Why did rebooting cause one side of my ZFS mirror to become UNAVAIL?

I just recently migrated a bulk data storage pool (ZFS On Linux 0.6.2, Debian Wheezy) from a single-device vdev configuration to a two-way mirror vdev configuration. The previous pool configuration ...
0
votes
1answer
1k views

Debian amd64 mirror size too large

I have rsync'ed debian amd64 to my local (Omnios) box using the recommended ftpsync too. The size of my mirror is 143 GB. I was led to believe from debian and other sources it should be around 80 GB. ...
0
votes
1answer
327 views

Debian local apt repo

Using debians ftpsync I've synced amd64 to my local file server, and installed debian over the network using ipxe. It dawned on me, that the content I've downloaded needs to be shared as an apt repo, ...
0
votes
0answers
58 views

SQL server HA when running with PCI Flash device

I want to purchase a PCI based Flash storage device for our ESXi server hosting our SQL Server machine. We use SQL Server 2008 standard edition. storage is on Netapp via NFS. It is a VM (ESXi 5.1) ...
2
votes
1answer
219 views

How to fix geometry of two identical disks?

I have two identical HDD. First has geometry 3876021/16/63 and second has geometry 3876018/16/63. First disk's capacity is 50% already. I want to add second disk to mirror (first disk is master). How ...
0
votes
1answer
539 views

Slow download speeds (own debian mirror)

I am using ftpsync to have a local version of the debian packages for all of our debian clients. Internally, the traffic from the mirror is at our normal LAN speeds (100 MB/s); however, when a ...
0
votes
1answer
49 views

Mirror drives on Exchange 2k3 server, larger drives than OS partition RAID ok?

I have an Exchange 2k3 server that uses a backup process that is at times unreliable. Part of the process is to nightly truncate those transactions logs (we receive ALOT of email). Currently I have ...
0
votes
3answers
502 views

How to use `rsync` to securely push to a mirror?

I am using rsync --rsh "ssh" to push to a mirror. Setting the necessary file system permissions on the mirror requires rsync to run with root privileges on the mirror. However, the mirrored files ...