Tagged Questions

3
votes
3answers
138 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 ...
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 ...
6
votes
2answers
234 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
1answer
187 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
1answer
79 views

Zpool list showing blank values

My problem is that when I call zpool list it gives this blank output.... NAME SIZE ALLOC FREE CAP DEDUP HEALTH ALTROOT - - - - - - - - However a zfs ...
2
votes
1answer
866 views

How do physical disks passed through ESXi perform vs. passing through HBAs?

Context: I have a SAN operating system (Nexenta) that runs on ESXi. It has a couple of HBAs passed through to it already, via VT-d. All of the HBAs for the SAN OS are full (no free connectors). I ...
8
votes
3answers
923 views

Backup storage server with ZFS

I am IT everything man at a small company. I want to design a new infrastructure including a new server and a separate backup server with company wide backup policy. The most important thing in the ...
1
vote
1answer
171 views

Nexenta, NFS and LOCK_EX

I'm currently using an LAMP architecture and I expect a big problem :( I have several http web server using PHP5. All are mounting via NFS (v3) the directory for all the hosted websites. The file ...
1
vote
0answers
133 views

How to Set up Amazon EC2 with Nexenta OS?

I want to use Nexenta os for testing purpose and really want to test it out over aws ec2. I couldnot find any Nexenta os ami's. So, i was wondering if there's any way to set up Nexenta os on aws ec2 ...
9
votes
1answer
3k views

Hosting a ZFS server as a virtual guest

I'm still new to ZFS. I've been using Nexenta but I'm thinking of switching to OpenIndiana or Solaris 11 Express. Right now, I'm at a point of considering virtualizing the ZFS server as a guest within ...
1
vote
3answers
740 views

Undelete ZFS file shared by Samba

A user deleted a directory containing an important file over a Samba share. Share was from a Nexenta box running ZFS, raid-Z3. Last backup was 12 hours ago - is there a way to recover the 1 day's ...
3
votes
3answers
761 views

Problems configuring an SSH tunnel to a Nexentastor appliance for use with headless Crashplan

Problem I am attempting to configure an SSH tunnel to a NexentaStor appliance from either a Windows or Linux computer so that I can connect a Crashplan Desktop GUI to a headless Crashplan server ...
3
votes
2answers
2k views

When using thin-provisioning with ZFS, how do you make sure you don't run out of physical disk space?

Forgive me if this seems like a fundamental question, but I couldn't really find anything concrete on Google, and I'm not a system administrator by trade. We are setting up a SAN at our office using ...
0
votes
2answers
336 views

Acquiring new servers to run ESXi and SAN/NAS

Here is our goal: Setup new servers to turn our entire physical computer network into 3 physical groups, which are: Server 1 - NAS - Openfiler/NexentaStor CE/FreeNAS/(Other Suggestions) ...
1
vote
3answers
539 views

Is it possible to limit folder size in NexentaStor Community Edition

For example if i have a 4TB ZFS Volume, is it possible to create 3 folders and then limit each folder to, say, 2GB. If so, how? I have googled hard and wide but to no avail - all i get is info on the ...
7
votes
3answers
3k views

Is FreeNAS ready for the enterprise?

I am having a bit of split in thought. I am looking at getting a NAS for my company, we need it for our VMware server. Originally the idea was to buy a NAS (a Netgear ReadyNAS) But then I got some ...
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 ...
3
votes
6answers
5k views

NexentaStor CE or Openfiler? Which do you recommend? [closed]

I'm planning to implement a 'poor man's storage' using Openfiler or NexentaStor CE. I need the filer solution to provide iSCSI target and CIFS sharing abilities. The iSCSI target and CIFS share will ...
9
votes
3answers
3k views

ZFS - Impact of L2ARC cache device failure (Nexenta)

I have an HP ProLiant DL380 G7 server running as a NexentaStor storage unit. The server has 36GB RAM, 2 LSI 9211-8i SAS controllers (no SAS expanders), 2 SAS system drives, 12 SAS data drives, a ...
4
votes
1answer
2k views

ZFS (NexentaStor) and 4k Advanced Format Partition Alignment

I have a storage system that contains 8 x 1TB drives that use the 4k sector size "Advanced Format". I'm planning to run NexentaStor on this hardware and want to ensure that I'm taking the 4k sector ...
3
votes
4answers
1k views

Handling XenServer snapshotting and cloning with ZFS SAN

I'm planning on setting up a XenServer machine that uses a NexentaOS/ZFS-based SAN for storage of the Virtual Disk Images (VDIs) through iSCSI. I know I could just setup a big Storage Repository (SR) ...
1
vote
1answer
4k views

NexentaStor vs FreeNAS

I currently have a Debian Lenny file server for my small network (4 machines). I have 4x1TB drives in a RAID5 config. Since I botched the Lenny-Squeeze upgrade, it seems like a perfect time to give ...
4
votes
1answer
679 views

Booting Nexenta root mirror results in GRUB error “Filesystem type unknown, partition type 0xbf”

I have a Nexenta system that's been running fine for the last few years. Recently one of the system disks failed --- the syspool was part of a ZFS mirror. If I configure the system's BIOS to boot ...
1
vote
3answers
508 views

Migrate zpool to new SAS controller

Long ago, we bought an Adaptec 31605 under the impression that: a) it could do true JBOD, and b) it was well supported on OpenSolaris. Turns out both of these were incorrect. I'm trying to get my ...
1
vote
2answers
320 views

Upgrade Nexenta to Solaris Express?

I've had a NAS built on Nextenta that has worked great for a while. However, I'm looking to upgrade the NAS to run Solaris Express 11 as it's better support by my company's IT department, as well as ...
0
votes
2answers
654 views

Nexenta can not read the pool label/ error 5 on import root pool

I have a home Nexenta Store CE server and after shutting it down to move it it will not boot up anymore. It turns on and detects all 7 drives ( 6 data drives plus 1 smaller OS drive) then it gives me ...
2
votes
2answers
2k views

Why is Nexentastor so slow - especially to delete files

I am running a Nexentastor server with the follow specs: dual core (core2duo) cpu 4GB of ram 1x 160GB SATA2 drive for the OS 6x 1.5TB Drives Sata2 drives in a RaidZ1 copying files is fine, fairly ...
1
vote
3answers
571 views

Nexenta/OpenSolaris filer kernel panic/crash

I've an x4540 Sun storage server running NexentaStor Enterprise. It's serving NFS over 10GbE CX4 for several VMWare vSphere hosts. There are 30 virtual machines running. For the past few weeks, I've ...
0
votes
2answers
658 views

Debug Nexenta/OpenSolaris core files?

I have a Sun x4540 that was recently converted to NexentaStor Enterprise Edition from an earlier OpenSolaris. The system disks were wiped and the zpools were exported and reimported. I'm hosting ...
1
vote
3answers
995 views

NFS IO priority on ZFS/Solaris

I've got a Nexenta/ZFS NAS that I'm using as an NFS backing store for a small VMware vSphere farm. At the moment I have 9x1TB disks all mirrored (last disk is configured as a write log device). The ...
0
votes
1answer
317 views

Finding the bottleneck in Nexenta?

I built a Nexentastor server (free edition) and I am having serious disk performance issues. This same box had FreeNAS on it before and it was much much faster. Here are the specs: Dual core E6600 ...
3
votes
3answers
748 views

Nexenta After the Death of OpenSolaris

We are thinking of evaluating Nexenta for a Tier 2 storage solution. It looks great, but I have doubts over its future after the demise of OpenSolaris. I know that Nexenta uses an OpenSolaris kernel ...
2
votes
4answers
949 views

Nexenta under KVM?

I have an Ubuntu Server running KVM. I'd like to get the benefits of ZFS so I was thinking of installing a virtual machine under KVM running Nexenta (or NexentaStor), allowing that virtual machine to ...
2
votes
4answers
4k views

ZFS - how to partition SSD for ZIL or L2ARC use?

I'm working with a Sun x4540 unit with two pools and newly-installed ZIL (OCZ Vertex 2 Pro) and L2ARC (Intel X25-M) devices. Since I need to keep these two pools in the near-term, I'd like to know how ...
3
votes
1answer
5k views

How do I login to Nexenta in Expert Mode?

When I login to the a Nexenta machine via SSH I have to type the following commands: nmc@nexenta:/$ option expert_mode=1 nmc@nexenta:/$ !bash You are about to enter the Unix ("raw") shell and ...
5
votes
2answers
1k views

ZFS - destroying deduplicated zvol or data set stalls the server. How to recover?

I'm using Nexentastor on a secondary storage server running on an HP ProLiant DL180 G6 with 12 Midline (7200 RPM) SAS drives. The system has an E5620 CPU and 8GB RAM. There is no ZIL or L2ARC device. ...
0
votes
5answers
618 views

Server OS for hosting virtual servers with ZFS?

I'm looking to build a small business server with the goal of having it do little more than hosting a few virtual servers on it. The virtual servers will be running Linux. Originally I thought about ...
0
votes
3answers
2k views

Disk names in Solaris 10 for ZFS: SAS WWN instead of c0t0d0

I currently have a server running Solaris 10u9 with a SAS enclosure (Dell PowerVault MD1000) filled with SATA disks attached to an SAS card (LSI 3801E). It happily recognizes the 15 disks in the ...
0
votes
1answer
875 views

new Nexentastor installation - can't run bonnie

I am new to Nexenta but so far I am liking it. I want to use it to replace Freenas for the ZFS advancements. Anyways I am noticing sort of bad performance with CIFS (30-50MB/s) so I figured I would ...
4
votes
4answers
3k views

JBOD SAS adapter for Solaris/Nexenta on Dell PowerEdge 2950?

Given: One or more available Dell PowerEdge 2950 servers The desire to deploy ZFS iSCSI storage using Nexenta or Solaris ZFS uses software RAID Dell's PERC 5 RAID controllers do not support JBOD ...
1
vote
1answer
990 views

how-to: ZFS design and cache tuning : ARC, ZIL

storage system in consideration from below h/w lying idle: 6 x 300GB 10K SAS; 2 X 146 GB 15K SAS; 12GB DDR2 RAM; Xeon CPU 2.5Ghz two 1GB NIC ports 1 - DLink 1GB ethernet switch (1000/100 MB) 8-port ...
9
votes
8answers
3k views

Anybody have experience with using Nexenta? [closed]

I'm evaluating the Nexenta platform to hopefully one day replace our legacy file servers. I would primarily use it as a CIFS server in an Active Directory environment. Anyone out there have any ...