After posting the original plan, I’ve made a few changes, highlighted below in bold Here is what I’m thinking of getting: SUPERMICRO MBD-H8SGL-O ATX Server Motherboard : $224.99 AMD Opteron 6128 Magny-Cours 2.0GHz 8 x 512KB L2 Cache 12MB L3 Cache Socket G34 115W 8-Core Server : $259.99 Kingston 8GB 240-Pin DDR3 SDRAM ECC Registered […]
Designing a new server, part II Read More »
I think I may have to put together a new server. For home use. Here is what I’m thinking of getting: SUPERMICRO MBD-H8SGL-O ATX Server Motherboard : $224.99 AMD Opteron 6128 Magny-Cours 2.0GHz 8 x 512KB L2 Cache 12MB L3 Cache Socket G34 115W 8-Core Server : $259.99 Kingston 8GB 240-Pin DDR3 SDRAM ECC Registered
Designing a new server Read More »
I’m sitting in the The Warden – FreeBSD and Linux Jail Management talk at EuroBSDCon 2012. He has mentioned two things, so far, that give me ideas. Evil ideas. Put each jail in a different ZFS data set – this may be useful for my jails running Bacula regression testing Schedule cron jobs to do
Idea from Kris Moore – PC-BSD Read More »
Last night, I found that I had a number of unused ZFS snapshots. I decided to destroy some of them. The first destroy locked up the system. Nagios reported everything was dead. I remotely power cycled the system. After it came back, I noticed that a scrub was in progress. This had not been initiated
Destroying some unneeded ZFS snapshots Read More »
OK, let’s compare the two snapshots, one taken today, the other taken on Monday. [dan@ngaio:/usr] $ sudo du -c -d 1 . Password: 4 ./.snap 62760 ./bin 37520 ./include 93068 ./lib 184 ./libdata 35384 ./libexec 75109696 ./local 37708 ./sbin 102480 ./share 1103840 ./src 250268 ./compat 376 ./games 4 ./obj 71082728 ./home 3584112 ./ports 4 ./tmp
I use a ZFS array for backups. The data is first copied to this array, and later copied to tape. This post contains some information which might be useful should I need to replace one of the drives in the array. We have 10 HDD in this system. Two are used in a gmirror for
ZFS details – just in case Read More »
I’m about to double the RAM in my ZFS system. It will go from 4GB to 8GB. Right now, I have: real memory = 4294967296 (4096 MB) avail memory = 4100382720 (3910 MB) I’m not interested in any big extensive benchmarks. I just want something simple. Hence: $ cd /storage/bonnie/ [dan@kraken:/storage/bonnie] $ ls -l total
ZFS benchmarking ideas Read More »
Here I go, removing an old ZFS dataset that is no longer required. But first, some stats (which have been edited to remove non-zfs output): [dan@kraken:~] $ df -h Filesystem Size Used Avail Capacity Mounted on storage 1.4T 15G 1.4T 1% /storage storage/bacula.DO.NOT.USE 5.8T 4.4T 1.4T 76% /storage/bacula.DO.NOT.USE storage/compressed 1.4T 49K 1.4T 0% /storage/compressed storage/compressed/bacula
For the record, I was doing a copy within a system recently: # time zfs send storage/bacula@transfer | mbuffer | zfs receive storage/compressed/bacula-buffer in @ 0.0 kB/s, out @ 0.0 kB/s, 4394 GB total, buffer 100% fullll summary: 4394 GByte in 35 h 11 min 35.5 MB/s real 2111m18.302s user 11m44.831s sys 258m59.151s I was
zfs send | zfs receive Read More »
I am impressed…. my gmirror array continued to work even after the drives were renamed from da20 and da24 to ada0 and ada1. This happened when I tried out the ahci(4) for my SATA drives. It’s the type of thing I’m striving for soon in my ZFS array. All this started when I wanted to
ZFS & gmirror & drive renumbering Read More »