-2
votes
2answers
247 views

Why does a failed ZFS disk still seem to work fine?

Two disks just failed in my zpool with read/write errors, so I took them out and inserted them in another host, created a zpool just with them, and filled the file system with dd if=/dev/zero ...
2
votes
1answer
52 views

Choosing a zpool size?

Is there a rule of thumb when to create a new zpool instead of expanding the current? Right now I have 100TB and can either expand with another 100TB or create an extra.
1
vote
1answer
601 views

How often should I defrag ZFS pools?

I ZFS scrub once a month which takes ~24 hours for the 72TB. For what I can find about how often I should scrub is: very busy pools, once per week not so busy pools, once per month or run a scrub, ...
6
votes
1answer
1k views

Does ZFS replace the need for hardware/software RAID?

I want to provide protection against data loss on my servers. Typically, I'd use hardware RAID 1 or 5, but I've been reading up on ZFS. Is it correct that ZFS itself provides RAID 1 or 5 like data ...
3
votes
2answers
1k views

Building one big filesystem with JBOD and ZFS

How to build a really big ZFS filesystem? The above question is vague in the 1st reading, so more precise. I know how to build big ZFS volume with one computer. e.g. get a good computer with ECC ...
4
votes
3answers
3k views

Mounting NFSv4 share from Debian Linux 6 to Freebsd 9-RC3 “server requires stronger authentication”

I've run into a strange problem while trying to mount from FreeBSD 9.0-RC3 to a Debian Linux box. The command I'm using is: sudo mount -v gorkon:/dustbin /tmp/test This returns the following ...
2
votes
2answers
1k views

UPS monitoring software for Linux, FreeBSD and Solaris

Looking to configure auto shutdown for my servers once the UPS battery reaches a certain state. We have MGE / EATON Pulsar M3000 UPS units, and a heap of servers running Ubuntu, FreeBSD and Solaris - ...
8
votes
2answers
1k views

Is it safe to replicate from Solaris ZFS to FreeBSD ZFS?

Is it safe to replicate from a Solaris 10 ZFS v22 to a FreeBSD 8.3 ZFS v28? Are there someone that have done this with specific versions of ZFS, where it worked perfectly?
2
votes
2answers
920 views

Mounting Solaris UFS partition on Debian(with FreeBSD kernel)

I have some disks that were being used on a Solaris system. The disks are formatted as UFS. I attached them to a Debian system (with FreeBSD kernel. Debian/kFreeBSD), but I cannot mount them. $ ...
2
votes
1answer
2k views

'pargs' command in FreeBSD or Linux

What's the FreeBSD (or Linux) equivalent to the 'pargs' command, available in Solaris? Many times I want to know what are the environment variables for a given process space, with no help from these ...
1
vote
2answers
530 views

Strange ZFS hidden filesystem problem

Half of my ZFS filesystems are hidden in ZFS-fuse. Here's my story: So, I love ZFS. I used it for about six months on FreeBSD, but due to it crashing the kernel during heavy inter-filesystem IO load, ...
0
votes
5answers
1k views

Fastest OS for Java applications

I have a multithreaded Java program. I am dealing with certain perfomance problems. I have improved everything. Hardware + Software. Now I think that it's time to move to proper Operating System. I ...
7
votes
4answers
1k views

ZFS and non Sun OS's

Is there any other Unix like distros that can read and write to ZFS filesystems. I know its currently unstable in FreeBSD :( The reason I am asking is I love ZFS but don't get on so well with Solaris. ...
0
votes
6answers
757 views

NFS server for storing ESX images

In the interests of avoiding FCvsNFS religious wars, let me first say that I prefer NFS over a standard FC SAN, and also I don't really have the option of using using FC for this anyhow. I'm ...
14
votes
4answers
1k views

Historical Question: Why does slice C or slice 2 cover the entire disk

Something that I was discussing with a couple of friends and we were unable to figure it out. In FreeBSD and OpenSolaris/Solaris when you partition a drive a partition is created that covers the whole ...