The FreeBSD Foundation says: “We are pleased to announce that Edward Tomasz Napierala has been awarded a grant to implement resource containers and a simple per-jail resource limits mechanism.” http://lists.freebsd.org/pipermail/freebsd-announce/2010-July/001335.html
Resource containers for FreeBSD jails Read More »
In a previous post, I wrote about a suspected LIMIT problem. It turns out that suspicion proved correct. The solution was to move to a nested query which limits the underlying data and then allows the outer query to grab all the associated fluff that surrounds it. Here is the fix to the original code:
A simple nested loop Read More »
I found this interesting. The usual FreshPorts logging indicated an unusual number of account creations in a short amount of time. So I went looking. I found one IP address had created 20 logins. freshports.org=# SELECT ip_address, freshports.org-# count(ip_address) freshports.org-# FROM users freshports.org-# GROUP BY ip_address freshports.org-# ORDER BY 2 DESC freshports.org-# LIMIT 2; ip_address
How many FreshPorts accounts are enough? Read More »
While creating the FreeBSD package for 5.0.0, I noticed a few new things to be aware of. With 5.0.0 comes a new backup catalog script. It parses the bacula-dir.conf file and extracts what it needs from that. This means you only need to specify the database connection information in one place and it is not
Bacula – errors with 5.0.0 backup catalog Read More »
From this morning’s log after a weekend power failure: Mar 15 09:15:45 subie kernel: GEOM_MIRROR: Device gm0: rebuilding provider ad8 finished. Mar 15 09:20:58 subie fsck: /dev/mirror/gm0s1f: UNREF FILE I=35 OWNER=root MODE=100400 Mar 15 09:20:58 subie fsck: /dev/mirror/gm0s1f: SIZE=151568652480 MTIME=Mar 13 16:03 2010 (CLEARED) Mar 15 09:20:58 subie fsck: /dev/mirror/gm0s1f: UNREF FILE I=15356429 OWNER=dan MODE=100644
power failure and gmirror Read More »
The smartmontools package contains two utility programs (smartctl and smartd) to control and monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (SMART) built into most modern ATA and SCSI harddisks. In many cases, these utilities will provide advanced warning of disk degradation and failure. (The above shamelessly taken from the supplied URL).
I thought I’d run some simple tests, based on a tuning thread I found: # dd if=/dev/urandom of=./file1 bs=1m count=1024 1024+0 records in 1024+0 records out 1073741824 bytes transferred in 14.283206 secs (75175127 bytes/sec) And while the above was running: # zpool iostat 5 capacity operations bandwidth pool used avail read write read write ———-
ZFS – some initial testing Read More »
Tonight’s goals: Install a second HDD get gmirror running install the remaining 5x2TB HDD add the two RAID cards After adding in the second HDD for the OS, dmesg shows this: ad4: 76319MB <seagate ST380815AS 4.AAB> at ata2-master UDMA100 SATA 3Gb/s acd0: DVDR <tsstcorp CDDVDW SH-S223C/SB01> at ata3-master UDMA100 SATA 1.5Gb/s ad8: 152587MB <wdc WD1600AAJS-75M0A0
mirroring the hard drive Read More »
Tonight I managed to: install a DVD-RW drive install 1x 80GB SATA drive connect all the chassis cables to the motherboard install the network card install FreeBSD 8.0-RELEASE start the upgrade process to FreeBSD 8.0-STABLE install a few ports: bash, joe, sudo The photos from tonight. Here is the output from /var/run/dmesg.boot Copyright (c) 1992-2009
FreeBSD installed on the server Read More »
HAST has just been added to FreeBSD: HAST allows to transparently store data on two physically separated machines connected over the TCP/IP network. Those two machines together will be called a cluster and each machine is one cluster node. HAST works in Primary-Secondary (Master-Backup, Master-Slave) configuration, which means that only one of the cluster nodes
HAST – High Availability Storage Read More »