Data Recovery Glossary

ZFS file system

Data Recovery Glossary home

List of pages

A - Access Rights to ASCII

B - Backup to BTRFS

C - CANON_DC to Cross-linked Files

D - DAS to Dynamic Disk

E - ECC to External Hard Drive

F - Failed Disk to fsck

G - Gigabyte to GUID

H - Hard Drive to Hybrid Disk

I - IDE to Internal Drive

J - JBOD to Jumper

L - LBA to LVM

M - Megabyte to Motherboard

N - NAS to Nuke & Pave

O - Operator Error to Overwritten Data

P - Parallel ATA to PSU

Q - QNAP to Quota

R - RAID to Resident File

S - SAS to Synology Hybrid RAID

T - Tailpacking to TrueCrypt

U - UDMA to USB Thumbdrive

W - WD to Write-Through Cache

X - X-RAID2

Z - ZFS

ZFS

ZFS (Zettabyte File System) - is a proprietary filesystem originally designed by SUN Microsystems and then moved to the OpenZFS project.

Zpool

ZFS storage pool - a set of disks combined into a pool on which ZFS filesystem hosted. Disks of any size and characteristics are easily include into a ZFS-based storage device and all the space is available to all the volumes.

ZFS RAIDz

ZFS RAIDz - a technology of combining disks into a single storage allowing to survive a single disk failure, based on the ZFS capability. Similar to a regular RAID5; however, the details of implementation differ much especially in varying number of RAID columns and sizes. Can be used either 2-column mirror layout or N-column (N>2) RAID5 with untypical parity block placement.

ZFS RAIDz2

ZFS RAIDz2 - a technology of combining disks into a single storage allowing to survive a double disk failure, based on the ZFS capability. Similar to a regular RAID6; however, the details of implementation differ much especially in varying number of RAID columns and sizes. Can be used either 3-column mirror layout or N-column RAID6 (N>3) with untypical parity block placement.

ZFS RAIDz3

ZFS RAIDz3 - a technology of combining disks into a single storage allowing to survive a triple disk failure, based on the ZFS capability. Can be used either 4-column mirror layout or RAID with 3 different parity functions.

ZFS dataset

In ZFS filesystem, ZFS dataset means a set of blocks of disk space from the ZFS pool which make up volumes, snapshots, and clones.

ZFS dnode

ZFS dnode is a metadata object which ZFS filesystem operates with.

Copyright © 2010 - 2025 www.ReclaiMe.com