0
votes
1answer
48 views

Is ZFS (filesystem) good for SDcards?

Ive reviewed all filesystems listed here: http://en.wikipedia.org/wiki/Comparison_of_file_systems I like ZFS the most out of all of filesystems listed there. But is it the best choice for ...
0
votes
0answers
188 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 ...
0
votes
1answer
93 views

Setting up Debian file server, looking for advice about what file system to use

I'm currently working on setting up a Debian media and torrent server for my home. Most of my home network is comprised of Macs, and up until now my "server" was two 4 TB hard drives formatted HFS+ ...
0
votes
1answer
87 views

How to mount zfs-fuse earlier in boot sequence so I can do rsyslog there on Ubuntu 12.04?

I'm trying to use zfs-fuse as the file system driver for a read/write partition that includes system logging on an Ubuntu 12.04 distribution. I have succesfully redirected rsyslog there by modifying ...
2
votes
1answer
472 views

Why is ZFS gzip-9 compression so much worse than actually using zip files?

I am working with some very large packet capture files (~150GB across 30 files) but because of how highly redundant packet captures are, these compress to ~7% (14.29x) of their originally file size ...
2
votes
1answer
69 views

Blacklist filename on FreeBSD ZFS

I have a ZFS based NAS that various platforms use for shared storage, namely Windows XP/7/8 and Linux. I've noticed that Windows clients are creating Thumbs.db files left right and centre, which I do ...
2
votes
1answer
494 views

ZFS compressed and deduped filesystem on file

I can create squashed filesystems with mksquashfs in this way: mksquashfs dir-1 dir-2 ... dir-n filesystem-on-file.squash -comp xz -Xbcj x86 -Xdict-size 1048576 -b 1024k mksquashfs provides ...
1
vote
0answers
216 views

Reading VMFS data from ZFS snapshot

I am wondering about something and maybe someone can give me a clue. If I have a server running ZFS plus an iSCSI target for my VMware ESXi box. Would ZFS snapshots of the iSCSI virtual block device ...
1
vote
1answer
492 views

Why is ZFS stored in a binary tree structure?

Apparently, in the ZFS (filesystem), there is an uberblock that points to the root of a zpool tree. Does anyone know why this tree makes things more efficient/reliable, and where the tree itself is ...
1
vote
0answers
424 views

What are the advantages of ZFS over other file systems? [closed]

Other filesystems - such as LFS, FFS, etc - in terms of reads, and for writes for general-purpose workloads Are there any disadvantages for using ZFS?
2
votes
1answer
899 views

ZFS (file system): what is an “uberblock” used for?

Why does ZFS (and possibly some other file systems out there) tend to use an "uberblock" on top of imaps? Why can't there just be multiple imaps instead of the uberblock?
2
votes
1answer
369 views

Rendundant & versioned filesystem [closed]

Introduction Only wimps use tape backup: real men just upload their important stuff on ftp, and let the rest of the world mirror it! (Linus Torvalds) That was a long time ago (well... 1996!). ...
1
vote
2answers
3k views

Piping in and out of tar and gzip

I am trying to get a handle on how to pipe from a command into something like gzip, cpio or tar. The commands in question belong to the ZFS system. I am running ZFS on Ubuntu Linux 10.04.3. The ...
1
vote
1answer
369 views

Recommendations for Filesystem

I have built the bones of a NAS system (which comprises of Ubuntu server 11.04 on 500GB SATA drive, and 3 2TB SATA disks in software RAID5 configuration)... I'm looking for some advice on what ...
2
votes
3answers
460 views

which ZFS-like filesystem can optimize volume selection based on file access patterns?

Is there a redundant RAID/ZFS-like filesystem that can optimize the placement of files based on their access patterns? My goal is to build a desktop system that will automatically move files among a ...
3
votes
1answer
4k views

How can I tell if ZFS (zfs-fuse) dedup/compression is applied to a particular file?

I have a zfs formatted partition using zfs-fuse for linux (Ubuntu). I had used it for a while, and then enabled dedup and compression on it (zfs set compression=on/dedup=on). Now I think I have some ...
4
votes
3answers
2k views

Transferring existing files from ext3 to ZFS (on FreeBSD)

I use an old machine as a file server, for backups, and as a testbed for development. I currently have Debian installed, but I'm very interested in FreeBSD because of ZFS: I really, really like its ...