church1e's blog

A repository of information technology questions and answers

Latest posts

ZFS Send and Receive

ZFS has the ability to send and receive data. This can be used to combine snapshots, create backups, or replicate data between servers

Renaming a ZFS zpool

Renaming a zpool is not as intuitive as I would expect, but it is still pretty simple. However, we can accomplish this through a three step process.

Creating a Solaris Zone on ZFS

The following is a simple example of creating a ZFS filesystem and using it to hold a newly-created Solaris Zone (Solaris Container)

ZFS versions in Solaris 10

This article describes available ZFS versions, features of each version, and the Solaris release that provides the ZFS version and feature

ZFS command line examples

ZFS uses the concept of storage pools to manage physical storage. Historically, file systems were constructed on top of a single physical device.

Troubleshooting ZFS

Most ZFS errors I've experienced generally fall into one of three categories. missing devices, damaged devices and data corruption.

ZFS Recommendations

Because ZFS uses kernel addressable memory, we need to make sure to allow enough system resources to take advantage of its capabilities

ZFS Internals

Max Bruning wrote an excellent paper on how to examine the internals of a ZFS data structure.

ZFS Hardware Maintenance

Once the drive has been physically replaced, run the zfs replace command against the device to allow it to be brought back online.

ZFS Data Protection

ZFS is a transactional file system. For each write request, a copy is made of the specified block protected by Copy-On-Write (COW)

ZFS Zones

If the filesystem is created in the global zone and added to the local zone via zonecfg, it may be assigned to more than one zone

ZFS Snapshots and Clones

The difference between a snapshot and a clone is that a clone is a writable, mountable copy of the file system.

ZFS Raid Levels

ZFS filesystems automatically stripe across all top-level disk devices. (Mirrors and RAID-Z devices are considered to be top-level devices)

ZFS Quick Reference Guide

ZFS uses the concept of storage pools to manage physical storage. Historically, file systems were constructed on top of a single physical device.

ZFS Pool Management

When disks are added to an existing mirrored or RAID Z pool, the ZFS is resilvered to redistribute the data.

ZFS Dataset Size

A simple entry on how to discover or set the size for a given ZFS dataset as occasionaly we need to increase the size of a ZFS dataset.