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Questions tagged [mirroring]

169 questions
15
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6 answers

How to build a high availability Postfix system?

I'm needing to set up a remote mirror for a postfix server (where the content of both mail servers should be the same at any time). The idea is that if the main server comes down at some point the mirror server will take its place, manage the new…
VanHackman
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14
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5 answers

mirrored filesystem across a few servers

I'm looking for a solution to mirror or replicate one directory (or one filesystem) across a few Linux servers. Ideal solution would be one, which permits all servers read-write access. I also want it to me resilient, if one of the servers goes…
vartec
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12
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7 answers

What is a practical way to mirror an Amazon S3 bucket?

I want to mirror my Amazon S3 buckets. I want to do this because 1) I don't want all my data only existing with one provider; and 2) in case of software error or security breach I want to have the data backed up. I can mirror to a local disk with…
Ben
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11
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5 answers

LVM mirroring VS RAID1

Having learned a bit about LVM mirroring, I thought about replacing the current RAID-1 scheme I'm using to gain some flexibility. Problem is that according to what I found on the Internet, LVM is: Slower than RAID-1, at least in reading (only…
SyRenity
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10
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4 answers

Do disks in Raid-1 function outside of the raid?

Raid-1 is mirroring two disks (if I haven't messed up completely here :p). Does that mean that I could take one disk out and put it into another machine and it would work like a normal disk? Or does it still only work in the raid? I can understand…
Svish
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9
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2 answers

What's the difference between "mirror" and "raid1" in LVM?

On the lvconvert(8) man page it says: --type SegmentType Used to convert a logical volume to another segment type or to explicitly state the desired RAID1 segment type ("mirror" or "raid1") when converting a linear logical…
Julian
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8
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1 answer

Configure Juniper M320 as Ethernet/STM transparent converter

There is Juniper M320. We need to move ALL the traffic from one port to another. Everything that comes to one port goes to another and vice versa. No snooping or any other processing is required. One port is going to be Ethernet and another one is…
Konstantin
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8
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4 answers

Can RHEL6 servers be "copied"?

My company needs to setup a development server and we already have 2 production RHEL 6 servers working under a L4 switch. One of the solutions to setup the dev server was to simple copy all files from one of the production servers and tweak it a…
yhware
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7
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1 answer

Can wget convert links within a local html document?

I know that wget can fetch a remote page and its dependencies and rewrite the html so that image src attributes reference the newly downloaded images. I am trying to convert local html files that reference images on the Internet. I'm using wget…
Kevin L.
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7
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2 answers

convert 1x2TB HDD with LVM into 2x2TB HDD with RAID1+LVM or with LVM mirroring?

I have Ubuntu server with 1x2TB HDD and 1x128GB SSD (unused). There are 2 partitions: /boot, and a physical volume for LVM, which has 1 group and 5 logical volumes: /, /var/log, /home, /srv, /tmp. Recently the 2nd 2TB HDD arrived. We need better…
chronos
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6
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2 answers

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 mirror all the traffic, but I haven't found how to…
smellyarmpits
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6
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1 answer

High Availability NFS Server (Heartbeat/DRBD) long hang on clients when takeover occurs

We have a High Availability NFS environment using DRBD, heartbeat and nfs exposed to clients (Simular to the following https://help.ubuntu.com/community/HighlyAvailableNFS ). This seems to be a rather common and well supported method of doing HA…
leenix
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6
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8 answers

Looking for a small, portable, port-mirroring ethernet switch

I recently had a mac go haywire, taking half a minute or more to get www.google.com loaded. Getting its owner to give up the machine for repair was like pulling teeth - they were insisting that it must be something to do with the network, since so…
user37244
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5
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1 answer

Selective mirroring over FTP

I need to keep my web page synchronized with a local directory. A very effective tool is lftp, which I use with the script: #!/bin/bash HOST='ftp.remote.it' USER='username' PASS='password' TARGETFOLDER='.' …
Massimo2013
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5
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5 answers

Sync/mirror directory with Rackspace Cloud files bucket

What tool can I use to synchronize the content of a local directory with that of a Rackspace Cloud Files bucket? I need a rsync-like application to do a mirror, not a backup application. What I want is the ability to do rsync --update --delete…
gioele
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