As previously mentioned, zuul has new drives. It is now time to replace the existing drives with the new drives. I will do this one at a time. Replace. Wait for resilver. At no time will the mirror be degraded (as would be the case if we removed a drive and mirrored). In this approach, we will mirror one of the drives to a new drive, and zfs will automatically remove the old […]
Replacing both drives in a zpool mirror Read More »
I have two new drives for zuul. I’ll start adding them into the zpool soon. For now, here is the smarctl output for the new drives. I’ll start some tests on them soon. By new, I mean new to this host. The drives have 17,000 hours on them. [dan@zuul:~] $ sudo smartctl -a /dev/ada2 smartctl 7.0 2018-12-30 r4883 [FreeBSD 12.0-RELEASE-p7 amd64] (local build) Copyright (C) 2002-18, Bruce Allen, Christian Franke, www.smartmontools.org === START
new drives for zuul Read More »
Current FreeBSD versions will allow you to create a zroot zpool from which you can boot. However, when I created the main zpool for slocum (on Fri May 3 2:16 2013), that option did not exist. You might ask: how do I know that date? [dan@slocum:~] $ zfs get creation system NAME PROPERTY VALUE SOURCE system creation Fri May 3 2:16 2013 – At present, the system boots from a raidz2 zpool. This
Adding a zroot pool to an existing system Read More »
This post has been replaced by a newer post. This is the previous post for this system configuration. For future reference, this is the knew server … oh wait, I think it’s this server which is was mounted in the 3U chassis mentioned in this post (perviously erroneously referred to as a 4U). It runs a few jails, including Bacula regression testing services. It is now mounted in a SuperChassis 846E16-R1200B This recent
This server, knew has had an intermittent problem related to CAM status: SCSI Status Error messages. There is a FreeBSD Forums post about it. On Sunday, the problem returned, and this time it degraded the zpool. I collected the information in this gist and I will list the relevant portions below. I had enabled smartd testing and I received this email late on Sunday: Despite the promise of more information in the logs,
zpool: FAULTED – too many errors Read More »
NOTE: I am not convinced of the value of doing these tests on a regular basis. smartd and smartctl are two utility programs included with the smartmontools package. On FreeBSD, smartmontools is installed via the sysutils/smartmontools port. Those programs can “control and monitor storage systems using the Self-Monitoring, Analysis and Reporting Technology System (SMART) built into most modern ATA/SATA, SCSI/SAS and NVMe disks. In many cases, these utilities will provide advanced warning of
using smartd to automatically run tests on your drives Read More »
For future reference, this is the knew server … oh wait, I think it’s this server which is mounted in the 4U chassis mentioned in this post. It runs a few jails, including Bacula regression testing services. This recent post outlines the modifications so it boots off a mirror of SSDs. File systems Paritions zpools /var/run/dmesg.boot
I recently installed 6 SSDs into an R710. In this post, I will describe what I did to the empty SSDs before I started using them. short test I ran a short test on each one of the drives. I already had smartctl. $ sudo smartctl -t short /dev/da0 smartctl 6.6 2017-11-05 r4594 [FreeBSD 11.1-RELEASE-p1 amd64] (local build) Copyright (C) 2002-17, Bruce Allen, Christian Franke, www.smartmontools.org === START OF OFFLINE IMMEDIATE AND SELF-TEST
R710 – getting the drives ready Read More »
If you’ve read even a little of what I’ve written, the following points will not come as a surprise: I like FreeBSD I’m a fan of backups I use Bacula I like ZFS I have tape libraries In this post, I will cover all of the above and more. Photos will be included. New gear Full disclosure: the following links contain my Amazon referrer code. On the left is the ICY DOCK 2.5″
Converting a Dell R710 into a ZFS-based FreeBSD 11.1 tape library bacula-sd Read More »
I’ve been having boot issues with a server containing 20 HDD, all behind HBAs. I have decided to start booting off SSDs. In that previous blog post, there was much speculation about where to mount the new drives, etc. In the meantime, I came up with a solution which did not involve magnets and used a pair of INTEL 730 SSDs I had in another chassis. Let’s start with how I configured those
Moving boot from one zpool to another Read More »