ZFS is a modern fileystem originally developed by Sun Microsystems and licensed under the CDDL.
0
votes
1answer
41 views
zfs send -i / receive stalling
On a Solaris 11.1 install, I see stalls when receiving a zfs incremental stream. The streams are originating from a Solaris 11.0 install, are created using zfs send -i and piped through mbuffer. At ...
2
votes
1answer
710 views
Monitorig ZFS io with Zabbix
I need to monitor per-zpool IO stats (number of reads, number of writes, size of reads, size of writes) with Zabbix. Is there a script for that?
kstat provides only agregate data (all zpools summed ...
0
votes
2answers
314 views
ZFS vs UFS for EMC Storage
I am new to ZFS and have been reading that EMC Storage may not like it. I am building production servers that will be using Oracle 10g and Oracle 11g. Will I have any issues using ZFS or should I use ...
1
vote
2answers
256 views
ZFS iSCSI and free capacity in VMFS
I use ZFS in FreeNAS 8.0.4 and use iSCSI to provide a LUN to Vmware ESXi 5.0.
I post it at http://forums.freenas.org/showthread.php?10990-Memory-utilization-and-performance-problem/page4, but I ...
3
votes
3answers
136 views
Tuning ZFS scrubbing, 141KB/s running for 15 days
A pretty basic system running mirror+stripe on 7.2k rpm sas disks, not particularly loaded. No dedup, compression on all datasets. Scrub has been running for 15 days at the speed of a dead snail. Is ...
3
votes
1answer
65 views
Can you set inode quotas in ZFS?
I figured out how to set block quotas in ZFS from the documentation on oracle's site.
I didn't see if / how to setup a quota on how many inodes a user gets, though. I realize that there may not be ...
2
votes
4answers
813 views
XenServer and ZFS via NFS
I'm trying to connect a NFS share to XenCenter. The NFS server is a ZFSGuru distro (uses FreeBSD).
The zfs volume was exported like this:
/sbin/zfs set sharenfs="on" temppool/share
According to ...
5
votes
5answers
1k views
Where is the central ZFS website now?
Oracle dumped OpenSolaris in Fall 2010, and it is unclear if Oracle will continue to publicly release updates to ZFS, except maybe after they release their next major version of Solaris.
FreeBSD now ...
2
votes
2answers
885 views
Solaris iSCSI SAN
We are looking into building an iSCSI SAN for virtualization and general storage needs. At a prior job I had built an iSCSI SAN using opensolaris (back when it was SUN) and utilized snapshot send/recv ...
5
votes
2answers
751 views
Suggestions for a NAS for VMware storage [closed]
I have been looking at Openfiler, and it appears to be a great open-source solution. I haven't seen very much documentation on limitations of OF. We are by no means a Fortune 500 company (yet:) so our ...
0
votes
4answers
412 views
16 HDD bays in an off the shelf standalone server? [closed]
We currently are using custom built servers as standalone backup machines (using rsync/zfs snapshotting). They run freebsd (just so we can use ZFS) and have 16 SATA HDD's in them all connected as ...
1
vote
1answer
109 views
ZFS configuration opinions [closed]
Currently, I'm tasked with progressively building a ZFS store. IOPS are not the priority, data security and capacity are.
In essence what we have is one brute of a machine, that contains an OS ...
1
vote
1answer
51 views
Safely migrate from 3ware 9650SE-8LPML to a 3ware SAS 9750-8i?
I have a server with a potenially faulty 3ware 9650SE-8LPML. I can log in to the server but the interface keeps reseting causing the whole system to lock down for minutes.
My host suspects its the ...
6
votes
2answers
524 views
Are ZFS clustered filesystems possible?
Is it possible to create a ZFS cluster? Or would you need to go the seemingly ugly (to me at least) route of ZFS with UFS formatted pools governed by GlusterFS?
The idea is to see if it is possible ...
1
vote
2answers
338 views
How much does FreeBSD differ from Linux?
I was trying to setup a NAS box for my ESXi server using linux, I was going to install ZFS and iSCSI and I thought everything was going to be awesome. I was wrong...
ZFS on Linux is not the most ...
2
votes
1answer
53 views
ZFS: will RAM shortage cause trouble?
what can happen if i've not enough RAM with a ZFS with dedup option activated?
1
vote
1answer
124 views
How to remove the OpenSolaris ZFS dump device
The ZFS dump device is used only for debugging problems. In this case, I have decided the risk vs reward is such that I should delete the dump device to make room for other storage.
I am able to ...
1
vote
1answer
41 views
ZFS rpool full, cant do anything
I have a huge problem, my rpool is full, so when i boot, i have tons of "no space on device" in my shell. No way to log, ssh server is down.
So i decided to boot with opensolaris Live cd and mount ...
1
vote
1answer
65 views
How set ZFS ACL permissions on CentOS 6
I use last ZFS (ZFS for Linux) on the CentOS 6.
Create successfully pool, all working fine. But i have one question.
How i can set ACL for ZFS folder/file?
GNU ls, chmod, and other coreutils not ...
1
vote
1answer
44 views
Can ZFS resilvering be used effectively for backing up to an external drive?
Suppose I currently use rsync to back up an internal drive periodically to an external drive. The external drive is usually stored offsite but is periodically brought over and plugged in via USB and ...
0
votes
2answers
57 views
How to delete and reuse ZFS filesystems inside a Pool
I have this ZFS Pool.
NAME STATE READ WRITE CKSUM
app ONLINE 0 0 0
raidz1-0 ONLINE 0 0 0
c1t2d0 ONLINE 0 0 0
...
2
votes
2answers
31 views
Is it possible to change filesystem properties for an existing ZFS pool?
Suppose I created a pool with compression=on, and later wanted to turn off compression in-place - is that possible and if so how?
I'm using Zevo CE on OS X in case that makes any difference (zpool ...
0
votes
0answers
14 views
How to update zfs-based flar?
I have ZFS-based flash archive (flar file). I need to install to it several additional packages and patches. As I know, it is possible for USF-based flar, but how to do it with ZFS-based one?
2
votes
4answers
8k views
Disabling RAID feature on HP Smart Array P400
I'm planning to use ZFS on my system (HP ML370 G5, Smart Array P400, 8 SAS disk). I want ZFS to manage all disks individually, so it can utilize better scheduling (i.e. I want to use software RAID ...
1
vote
1answer
116 views
ZFS about 7.2% disk space is lost
I know that ZFS reserves 1.6% disk space for copy-on-write. However, I am losing more than that. I have a ubuntu server with native ubuntu-zfs installed. The server has 45 drives, each 3TB. I am ...
2
votes
1answer
58 views
Are snapshots and clones filesystem-wide in ZFS-backed Lustre clusters
My goal is to find a distributed filesystem on Linux that supports ZFS-like lightweight snapshots and snapshot clones. This StackOverflow question expresses what I'm looking for pretty well. I'm ...
1
vote
1answer
78 views
ZFS / ZFS send for database replication
Let's say I've got a somewhat important database but one where I don't actually care about every transaction. Before you get snarky -- it is a database storing zabbix status data, so I honestly don't ...
3
votes
1answer
98 views
ZFS pool created with ZFS on Linux, usable by SmartOS?
I have a Linux server running libvirt + KVM which I am thinking of migrating to SmartOS. The server has a ZFS pool created with ZFS on Linux, where the KVM guests are stored (as ZVOLs). My question ...
0
votes
1answer
63 views
ZFS import pool ahcich0: timeout (NanoBSD 8.2 -> 9.1)
Many times when I had to make changes to the system, I boot from the USB drive to the new build NanoBSD then import the pool to the system. In the transition from 8.2 to 9.1, I do the same - boot from ...
1
vote
1answer
34 views
ezjail-admin update -i can't create tank/ezjail/basejail
I updated the server FreeBSD 8.2-p10 amd64 to 9.1-p1 amd64, and I want to update jails started ezjail. I downloaded the source, built the world and run the command:
ezjail-admin update -i
but got ...
5
votes
1answer
225 views
FreeNAS ZFS Kernel Panic
I'm running FreeNAS 8 and my computer had a hard reset from a power outage and now every time I try to boot I get the following error message:
Error Message: panic: zfs_replay_acl_v0:898: unsupported ...
1
vote
1answer
149 views
FreeNAS: Renaming a zpool
Now that our server is set up, I would like to rename our zpools.
I read somewhere that the way to do this is export & re-import under the new name. But will all my mount points and shares remain ...
0
votes
2answers
69 views
How to find files with top io on solaris ZFS?
I have a Solaris 10 ZFS based NFS server. The physical disks are more or less at their maximum io rates. Performance is very bad - so we will add spindles. The NFS solely serves as storage for ...
1
vote
3answers
1k views
USB Flash Drives As Boot Drives In File Server
I'm designing a file server based around ZFS and I'm considering using USB flash drives in RAID 1 as boot devices. It seems that few people do this, and I'm wondering why. From what I see, using USB ...
3
votes
2answers
97 views
ZFS pool is empty after crash
I'm on Linux 3.6.11 with ZFS on Linux 0.6.0rc11.
I have a large ZFS pool with three subpools:
zpool1
zpool1/backups
zpool1/graphite
zpool1/log_backups
The machine rebooted last night, ...
1
vote
1answer
58 views
Rsync Backup from XFS to ZFS
I currently have a backup solution in place that uses rsync to backup all out Linux servers from remote sites, to an XFS drive in our HQ. I am now trying to rsync the folder from the XFS drive in our ...
6
votes
2answers
232 views
Why did I experience checksum errors with a ZFS filesystem on an ESXi RDM?
I have a VMware ESXi 4.1 server which I recently added 2x1TB SATA drives to. This machine runs a NexentaStor Community VM which hosts ZFS filesystems. Before adding the new drives, all the ZFS zpools ...
2
votes
2answers
102 views
Would storing logical volumes on a ZFS storage benefit from caching?
What I'm planning to do is having a ZFS storage connected to my network. Attaching it with either iSCSI or SRP to the hypervisor server. And storing KVM images (logical volumes) on it.
Would this ...
7
votes
1answer
224 views
Why did my zpool replace never finish and what should I do now?
I have a ZFS zpool with two disks in a mirror configuration, da0 and da1. da1 failed, and so I replaced it with da2 using
zpool replace BearCow da1 da2
This ran for a few hours, during which zpool ...
0
votes
1answer
81 views
Solaris 11.1 ZFS Root rpool shows one disk unavailable and online, how to detach
This is an x86 Solaris 11.1 installation. I have two zfs pools R500 and rpool
I wanted to upgrade R500 from 500GB disks to 2TB which I've done then use the 500GB disks as root rpool disks to replace ...
1
vote
1answer
135 views
using cp -p onto NFS mount on ZFS filesystem fails
I am trying to copy from an Ubuntu machine to a OmniOS ZFS pool shared via NFS. When I run the below command, I get:
cp: failed to preserve ownership for `./test.txt': Invalid argument
The thing ...
2
votes
1answer
184 views
Why is MySQL unable to open hosts.allow/hosts.deny?
I have a storage server running Nexenta (OpenSolaris kernel, Ubuntu userspace) with MySQL on top of a ZFS storage array, using innodb_file_per_table and ulimit -n set to 8K. mysqltuner.pl confirms ...
0
votes
0answers
96 views
Export a ZFS pool that is on top of LUKS?
I thought I had the perfect setup for incremental, encrypted backups, while still being able to use rsync's ability to restart an interrupted transfer.
I have an Ubuntu 12.04 system with ZFSonLinux. ...
1
vote
3answers
291 views
ZFS on KVM virtualised server. Should I run ZFS on the host or the guest?
I'm planning to run ZFS on Linux (latest Ubuntu stable ppa). The hardware is a xeon E3-1270 with 24 GB of RAM, 6 SAS ports on the motherboard, and a supermicro HBA with 8 SAS ports. I plan to have 4 ...
0
votes
1answer
140 views
zpool: disk replace breaks disk naming convention
After replacing 2 broken disks in my RAID-Z2 pool the output of 'zpool status' looks strange. The disks are addressed with their full path and also seem to contain 'slices', which all other disk ...
0
votes
0answers
33 views
Backing up ZFS samba share fails via Tivoli Storage Manager (TSM)
I have the Tivoli Storage Manager (TSM) client running on a Windows 2008 server. It is trying to backup a SMB share from a ZFS storage server. The Windows user running the TSM client is a domain ...
7
votes
6answers
4k views
Is bit rot on hard drives a real problem? What can be done about it?
A friend is talking with me about the problem of bit rot - bits on drives randomly flipping, corrupting data. Incredibly rare, but with enough time it could be a problem, and it's impossible to ...
-1
votes
1answer
91 views
Getting data out of a ZFS HDD without pool
After a lot of manipulation mistakes, is it possible to extract the data from a HDD which was mirrored in ZFS, but with a destroyed pool (even zpool import -D does not work) ?
1
vote
2answers
352 views
Xenserver 6.1 and ZFS file server
I want a paravirtualized ZFS server for Xenserver 6.1 supporting a 6+ TB zpool.
The old templates for Xenserver 6.0.2 and FreeBSD 9 don't work.
I have been unsuccessful ("Not a Xen-ELF image...") at ...
-2
votes
2answers
80 views
Mac files on Windows server (loses some data) [closed]
We added 2 Mac's to our Windows network. We are finding that some users are deleting the Mac hidden files that provide Finder meta data. Also, if a Mac user moves a file to another folder, they don't ...
