0
votes
0answers
77 views

Cheaper alternative to ZFS Storage for a home NAS

I'm looking to build a NAS for home use with 8-10*(2-4TB) drives, out of which 2-3 drives would be used for parity via software RAID. In the past years and up to date, ZFS seems to have become the ...
1
vote
0answers
38 views

ZFS and FreeNAS: Mirror using half a drive

I'm planning to set up a FreeNAS server with two of my spare drives: 1x 1TB drive 1x 2TB drive Both drives are identical besides their capacity and neither has any data on it. Is it possible to ...
0
votes
1answer
37 views

zfs for Linux – formatting disks

I just installed the zfs file system for Linux, but now I do not know how to format a drive with it. I am running Ubuntu 12.04 LTS Desktop and trying to format two external hard disks to mirror each ...
0
votes
0answers
175 views

Converting LVM/EXT4 to ZFS without losing data

I have a home media server with 2 x 3TB drives in it. Its currently set up using mdraid (1), LVM and EXT4. The setup was done using the ncurses Ubuntu Server installer. Goal Convert the setup to use ...
1
vote
1answer
135 views

Running ZFS as MediaStorage with non ECC-Ram

First to the Setup: I'm planning to use 8-11 USB3 Disks to form a MediaStorage The idea is to use 2 USB3 Hubs to balance the load between two seperate USB3 Ports (on different hubs) Now from what ...
1
vote
1answer
324 views

FreeNAS planning - RAID controllers & expanding volumes

I'm considering building a FreeNAS box to replace a Synology DS1511 - mainly because I'd like it as a project with more flexibility. Couple questions: 1. Most people recommend a hardware RAID ...
2
votes
1answer
523 views

Home ZFS based NAS…What processor/chipset to use? [closed]

So, I'm building a home/personal NAS. My plan is to expose both SMB fileshares for sharing files/media between hosts, but also to carve an iSCSI target LUN out of it for use by VMWare as a datastore. ...
1
vote
1answer
20 views

Non Raid - Symbolic links

I have 3x 3TB drives and 2x 1TB drives. I want to use all drives without RAID, but to be shown as a single volume. So that if a drive fails only the information on that failed drive will be lost. ...
5
votes
3answers
5k views

ZFS Beginner Setup with Different Size Drives

Sorry for the noobie questions, I've been Googling all sorts of walkthroughs to create my ZFS raid, but I can't seem to find the correct links for the answers I'm looking for. This is my first ...
1
vote
1answer
131 views

Should a RAID array of 3x7200 RPM HDDs be able to saturate a gigabit ethernet link?

I have a ZFS RAIDz (RAID5) array of three 7200RPM SATA2 drives in a FreeNAS virtual machine. I have multiple machines connected to this VM over a gigabit network. I'm seeing via bandwidth graphs that ...
0
votes
1answer
79 views

Replacing a disk with ZFS

I've been using ZFS for a RAID on my mac for the past few months and a few days ago one of the disks died. The computer didn't recognize it anymore, it shut off seconds after being turned on and made ...
7
votes
1answer
842 views

Formula to calculate probability of unrecoverable read error during RAID rebuild

I need to compare the reliability of different RAID systems with either consumer or enterprise drives. The formula to have the probability of success of a rebuild, ignoring mechanical problems, is ...
1
vote
2answers
336 views

Do I need differential backups in ZFS?

I am considering migrating from (debian + mirrored raid + daily differential backups + weekly full backups) to ZFS raidz. Is there any point of performing backups in ZFS the same way as my current ...
4
votes
3answers
1k views

RAID5 / RAIDZ - is it possible to enlarge without losing data?

If I have a RAID5 with 4x1TB drives, and then in, say, a year I decide to upgrade to 4x2TB, can I swap out one drive at a time, then let the parity rebuild, even if it's mixed-size drives? Obviously ...
6
votes
4answers
8k views

Start a ZFS RAIDZ zpool with two discs then add a third?

Let's say I have two 2TB HDDs and I want to start my first ZFS zpool. Is it possible to create a RAIDZ with just those two discs, giving me 2TB of usable storage (if I understand it right) and then ...
2
votes
2answers
640 views

ZFS RAIDZ Parity

I am building an OpenSolaris box to attempt to use ZFS and RAIDZ. I am starting simple with the OS on one drive and wanting to store all my data on the RAIDZ volume. I am a bit confused on RAIDZ is ...
4
votes
2answers
498 views

ZFS performance issue

i recently set up a FreeNAS server with the following specs: 2.2Ghz AMD Processor 5GB RAM (just put in what i had) 500GB system drive (with a data partition, probably UFS?) 2x1TB data drives in a ...