Nexenta is a Unix-based storage appliance operating system centered around the ZFS filesystem.

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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 ...
10
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3answers
4k 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 ...
9
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8answers
4k 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 ...
8
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3answers
2k 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 ...
8
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4answers
4k 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 ...
8
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3answers
3k 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 ...
7
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2answers
2k 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. ...
6
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2answers
2k views

HP ProLiant DL380 G4 SATA support?

I'm planning to get a second hand HP Proliant DL380 G4 and setup it as storage server, probably using NexentaStor and setup a ZFS system. But now I wonder does DL380 G4 can be convert or support SATA ...
6
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2answers
665 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 ...
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2answers
829 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 ...
4
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3answers
3k 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 ...
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4answers
4k 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 ...
4
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1answer
8k 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 ...
4
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1answer
3k 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 ...
4
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1answer
969 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 ...
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6answers
6k 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 ...
3
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4answers
2k 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) ...
3
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3answers
808 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 ...
3
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1answer
2k 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 ...
3
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1answer
337 views

NexentaStor: how to partition SSD disk?

I try to setup some handmade storage made of desktop motherboard, 4 x SATA drives and 2 x SSD drives. I'd really like to use NexentaStor for its nice web interface and for it is some production-ready ...
3
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3answers
1k 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
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1answer
502 views

How to set up IP forwarding on Nexenta (Solaris)?

I am trying to set up IP forwarding on my Nexenta box: root@hdd:~# uname -a SunOS hdd 5.11 NexentaOS_134f i86pc i386 i86pc Solaris The box has 2 network interfaces: root@hdd:~# ifconfig -a lo0: ...
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4answers
5k views

NexentaStor - Access web console from different subnets

I'm trying to access the NexentaStor web console via port 2000 from a different subnet than the system's main IP address. In my situation, this is either over a VPN or to access a remote Nexenta ...
2
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4answers
7k 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 ...
2
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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 ...
2
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3answers
761 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 ...
2
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3answers
3k views

Advantage of using nexenta vs. OpenSolaris

I am currently building a NAS for about 24 TB of storage. Video files, slow access, long term storage. No performance issues. I am currently undecided between buying a JBOD case and installing ...
2
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1answer
423 views

Disk replace breaks disk naming convention in zpool

After replacing two 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 ...
2
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1answer
466 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 ...
2
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4answers
1k 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
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2answers
1k views

How can I rate limit/packet shape/traffic shape on Solaris

I have an TCP server application running on a Nexenta NCP 3 box. I would like to limit how much outgoing bandwidth it can use. Is it possible in Solaris to rate limit an application like I can in ...
2
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1answer
351 views

ZFS, NFS and Nexenta

Is this message familiar to someone ? zfs-clu-01a rpcmod: [ID 851375 kern.warning] WARNING: svc_cots_kdup no slots free zfs-clu-01a last message repeated 75220 times We have a lot of trouble ...
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3answers
1k 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 ...
1
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2answers
353 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 ...
1
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3answers
849 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 ...
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3answers
883 views

scalable storage solution using ZFS: OSOL / Nexenta?

some one commented that ZFS is not a distibuted file system and thus more suitable for storage from a box than a cluster. is it possible to start small as NAS with Nexenta / opensolaris and scale up ...
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1answer
243 views

Multi Port Fibre Channel Target with qlogic qle2462 to increase speed

I have a server running Nexenta with a QLogic QLE2460 in target mode. This works great. My problem is that with that I only get 1 port worth of speed (4gbps) to my switch. How can I increase the ...
1
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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 ...
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4answers
1k 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 ...
1
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1answer
43 views

nexenta and the free access to web interface

In nexentastor default intallation any users that knows the ip can connect to it and access in read-only mode to the web interface In my opinion this can rappresent a problem because anyone can read ...
1
vote
1answer
582 views

What would cause a Windows 7 client machine to not be able to connect to a network share by IP address?

We have a Nexenta file server which is using domain authentication for users. All of the Windows 7 machines on our network can connect and use the shares on it without any issues using either ...
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2answers
440 views

Can we “add” more SAS ports to an existing backplane?

We have a 3U Supermicro chassis with 16 bays on a SAS expander backplane. We have 15 of the bays occupied with hard drives at the moment. We would like to add two more drives to the backplane, but we ...
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2answers
397 views

size the write cache ZFS

I would like to add a write cache to my Nexenta. I thought about using 2 SSDs in mirror with a third disc in spare. The problem is: How do I calculate the size of my array to maximize the investment ...
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1answer
251 views

How to fetch current l2arc_max_write setting on Illumos?

I am trying to tweak my ZFS pool, but in order to do this I would like to know the current l2arc_max_write setting. I know the default is 8 MB/s, but I can't find the actual value. I have tried to ...
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1answer
254 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 ...
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3answers
574 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 ...
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1answer
41 views

Prevent NexentaStor analytics page from timing out

NexentaStor has a handy profiling interface that serves as a front to certain dtrace scripts. It's handy for monitoring realtime IOPS or I/O throughput of the appliance. Unfortunately, this interface ...
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1answer
3k views

ESXI Crash need help to understand log and support about nexentastor on virtual machine

If i understand right, the following core dump means that the cpu4 has crashed the Host if i read the next line it seem that at the time the CPU 4 was assigned to the NexentaStore Vm ... SO if im ...
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1answer
254 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 ...
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1answer
1k views

Install MegaCli to Monitor Perc 5/i in Nexentastor 3

I have a Dell 2950 with a Perc 5/i Raid controller that we've already installed Nexentastor 3 Community Edition on. We setup a raid-10 array that and put a ZFS pool on top of the hardware. As I ...