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answered basic varnish 4.0 setup doesn't seem to work
May
2
comment Recovering data from a RAID built with fakeraid
good luck, fingers crossed ;-)
May
2
comment Recovering data from a RAID built with fakeraid
@alexandernst updated my answer ...
May
2
revised Recovering data from a RAID built with fakeraid
added 810 characters in body
May
2
comment Recovering data from a RAID built with fakeraid
I think you do not need any hardware for that. It's just metadata so it probably should work when connected to any other controller.
May
2
answered Recovering data from a RAID built with fakeraid
May
1
comment Balanced btrfs filesystem using different amounts of space on each disk
It is very hard to suggest a safe approach (btrfs is still not widely trusted, especially in such corner cases). (do you have backup before conversion? you should have) But I'd say make a backup of the filesystem, it should not be broken thanks to checksums. I'd defragment and balance and see what happens...
May
1
revised Balanced btrfs filesystem using different amounts of space on each disk
Please do not use backticks to quote multiline blocks of code. Use 4 spaces (braces icon will do it for you).
May
1
answered Balanced btrfs filesystem using different amounts of space on each disk
May
1
suggested approved edit on Balanced btrfs filesystem using different amounts of space on each disk
Apr
29
comment Very low OpenVPN throughput (100Mbit port, low CPU utilization)
@ElliotB. As DRBD itself uses TCP for replication, it will retransmit in case OpenVPN UDP packet is lost. Actually using TCP in this case you will do two retransfers instead of one ... one of which is going to get thrown away. And you may be creating a pretty long window with no DRBD traffic (even get broken replication because of this). Once you get some packetloss on the route, you will see how bad thinking this is.
Apr
29
comment Enable HugePages on Linux for multiple services/processes
@ColOfAbRiX And just looking at your original problem - do you have enough hugepages to support both JVM and MySQL? MySQL should log the reason, why it could not use hugepages.
Apr
29
revised Enable HugePages on Linux for multiple services/processes
added 428 characters in body
Apr
29
comment Enable HugePages on Linux for multiple services/processes
This may help access.redhat.com/solutions/46111
Apr
29
comment Enable HugePages on Linux for multiple services/processes
What I am suggesting is - modern kernel does not need any tuning and tweaking to use hugepages. You just need transparent_hugepages enabled. That way you can forget about permissions, services or whatever. It automagically works.;-)
Apr
29
answered Enable HugePages on Linux for multiple services/processes
Apr
29
revised Nginx TCP Fast Open Issue
Prefix code with 4 spaces please.
Apr
29
suggested approved edit on Nginx TCP Fast Open Issue
Apr
29
comment Why is there flooding on L2 but not on L3?
@Jimmy88 because in the hub-age of networking (and before) there were very few switches. Generaly every packet went everywhere. So there was no need for another protocol. And it's way simpler to implement (especially important for small dumb $10 switches; back in the days for every switch) than separate protocol
Apr
29
comment Balanced btrfs filesystem using different amounts of space on each disk
What does btrfs fi df <mountpoint> say?