IO Performance test for AuFS

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Bonnie++ results from running on one of the 250gig drives.

Version 1.01d ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
xen-steel 8G 71543 63 73234 14 33611 3 73275 65 78241 0 185.4 0
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 346 0 +++++ +++ 302 0 343 0 +++++ +++ 265 0
xen-steel,8G,71543,63,73234,14,33611,3,73275,65,78241,0,185.4,0,16,346,0,+++++,+++,302,0,343,0,+++++,+++,265,0

Bonnie++ results from running on the aufs mount.
Version 1.01d ------Sequential Output------ --Sequential Input- --Random-
-Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
xen-steel 11G 67460 60 57827 13 26490 5 57663 40 60691 2 186.2 0
------Sequential Create------ --------Random Create--------
-Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP /sec %CP
16 372 0 +++++ +++ 294 0 363 0 +++++ +++ 220 0
xen-steel,11G,67460,60,57827,13,26490,5,57663,40,60691,2,186.2,0,16,372,0,+++++,+++,294,0,363,0,+++++,+++,220,0

Not much difference…

Server OS upgrade?

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Should I upgrade from OpenSuSE 10.3 to OpenSuSE 11.0?
Pros:
– Update AuFS (so I don’t have to compile from source)
– Possible XEN improvements (since suse11.0 user xen 3.2)
– Setup everything with Webmin to make it easily manageable from one place.

Cons:
– Takes time
– Unknown how long it will take to set up all VM’s again.
–

Moving away from Raid5

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Move contents of Jess’s 500gig (206gigs in content) drive to my old USB enclosure drive of 250 gigs (233 gigs usable)

Move all my RAID 5 content (553gigs) to Jess’s 500gig drive (452gig usable) and my old 160gig drive (about 140gig usable)

Then I can play with taking the raid set off line, and re-formatting the 4 drives and then copy the data back to the drives. I will deal with AuFS and FlexRAID after.

FS merger found.

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Found exactly what I was looking for here.

The driver combines a several mount points into the single one

Actually I think this may actually be better then the Drive Extender things…

Ther’s also UnionFS and AuFS

Played with AuFS a little, and got it working on the laptop.
This is the mount command that worked:
#mount -t aufs -o dirs=/home/outsider:/tmp=ro none /mnt/aufs

Just need to get it working on the server now.

TWMS: spam because of online forms

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It looks like the current form on the TWMS site is attracting a lot of spam.
I need to add some sort of CAPTCHA to prevent bots from sending messages. I just added a checkbox, which should slow messages down, but I will implement a random text image captcha as found here.
This should prove good enough, but I need time to implement it.

Come to think of it, I should probably refactor the portion of the page that generates the html code for the pop up boxes.

Windows Home Server;Drive Extender – for linux

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So it appears that nothing like the drive extender that WHS has, exists for linux. Discussion on AVSForums leads me to believe that.
Explanation on how WHS Drive Extender works.

So I have decided to write some code to accomplish something similar.
What are the needs:
– amalgamate a pool of partitions/folders and make them seem like one folder.
– when data is written to the pool, the software manages where the data is stored (what partition/folder in the pool)

Since everything is running from partitions/folders, FlexRAID can be applied to the same folders, to add a level of redundancy to the whole system (something WHS doesn’t have to my knowledge)