On a debian server, I have unionfs mount with no entry in fstab. How can I figure out the command, that was used to mount unionfs (or which directories make up the union) ?
I have a virtual machine (VMM is Xen 3.3) equipped with two IDE HDD's (/dev/hda and /dev/hdb). The root file system is in /dev/hda1, where Scientific Linux 5.4 is installed. /dev/hdb contains an empty ext2 file system.
I want to protect the root file system from writes by the VM by using aufs (AnotherUnionFS) to layer a writable file system on top…
On a Linux environment sometimes I need to run a script as root which will add/modify serveral files on my fs.
Basically I'd like to know exactly which files are modified and how WITHOUT opening the script and trying to guess the code.
I was thinking about using something like unionfs: the main fs would be accessible in readonly mode and all…
Using FreeBSD 9, and created a ZFS file system like so
zfs create tank/project1
zfs set sharenfs=on tank/project1
There are many howto's on setting up NFSv3 on FreeBSD on the net, but I can't find any one NFSv4 and when the NFS share is done with ZFS.
E.g. this howto say I have to restart the (NFSv3) by nfsd -u -t -n 4, but I don't even…
I realize that since NFS is not block-level, LVM can't be used directly.
However: is there a way to combine multiple NFS exports (from, say, 3 servers) into one mount point on a different server?
Specifically, I'd like to be able to do this on RHEL 4 (or 5, and re-export the combined mount to my RHEL 4 server).
expansion
The reason I…
I am running MySQL with its data dir on a 128Gb SSD. I am dealing with large datasets (~20Gb) that are loaded and processed weekly, each stored in a separate DB for the purposes of time point comparisons. Putting all the data into a single database in unfeasible because the performance on such large databases is already a problem.…
I'm looking for methods and software to help create a variant of lubuntu that will restore itself to an install state and/or update on every boot. I'm thinking of doing things like putting the root filesystem on a squashfs and using unionfs and tmpfs to make root writable, but automagically restorable. I'm thinking of updating…
I've just bought a 6-core Phenom with 16G of RAM. I use it primarily for compiling and video encoding (and occassional web/db). I'm finding all activities get disk-bound and I just can't keep all 6 cores fed. I'm buying an SSD raid to sit between the HDD and tmpfs.
I want to setup a "layered" filesystem where reads are cached…
My company makes an embedded Debian Linux device that boots from an ext3 partition on an internal SSD drive. Because the device is an embedded "black box", it is usually shut down the rude way, by simply cutting power to the device via an external switch.
This is normally okay, as ext3's journalling keeps things in order, so…