Questions tagged [nexenta]

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 ...
osij2is's user avatar
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16 votes
4 answers
20k 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 ...
3molo's user avatar
  • 4,350
11 votes
2 answers
4k 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. ...
ewwhite's user avatar
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10 votes
3 answers
8k 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 hot-...
ewwhite's user avatar
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9 votes
3 answers
5k 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 ...
Krystian Lieber's user avatar
9 votes
7 answers
5k 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 votes
4 answers
7k 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 ...
AtomicPorkchop's user avatar
7 votes
2 answers
7k views

HP ProLiant DL380 G4 SATA support? [closed]

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 ...
hoon's user avatar
  • 71
7 votes
3 answers
10k 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 ...
Mike Spross's user avatar
6 votes
2 answers
898 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 ...
Chase's user avatar
  • 472
6 votes
2 answers
2k 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 ...
Josh's user avatar
  • 9,208
5 votes
4 answers
19k 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 ...
ewwhite's user avatar
  • 198k
5 votes
4 answers
5k 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 ...
Skyhawk's user avatar
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5 votes
2 answers
659 views

Nexentastor 4: lost connection to storage and web interface

I have a server that runs nexentastor version 4. I use web interface to manage it. The server has been working on production environment for about two years with no issues until last week - where I ...
ymsarts's user avatar
  • 51
5 votes
1 answer
332 views

Missing space on ZFS (Nexenta)

I am facing an issue where ZFS appears to be missing around 4TB of space on a 16TB volume. The ZFS pool is reporting the correct size (16.3TB): nmc@thn-nstor1:/$ zpool list NAME SIZE ...
btongeorge's user avatar
4 votes
6 answers
8k 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 ...
pepoluan's user avatar
  • 5,098
4 votes
2 answers
6k 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 (...
CSG's user avatar
  • 737
4 votes
3 answers
912 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 ...
SvrGuy's user avatar
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4 votes
1 answer
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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 ...
ewwhite's user avatar
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4 votes
1 answer
13k 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 ...
Harley's user avatar
  • 2,227
4 votes
1 answer
2k 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 ...
smokris's user avatar
  • 705
4 votes
1 answer
2k 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 using ...
Givre's user avatar
  • 59
3 votes
5 answers
4k 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) ...
Alex's user avatar
  • 471
3 votes
1 answer
3k 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 ...
Zac B's user avatar
  • 841
3 votes
1 answer
1k views

NexentaStor: how to partition SSD disk?

I'm trying to set up some homegrown storage using a 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 ...
Alexander's user avatar
  • 824
3 votes
3 answers
3k 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 ...
Rob Smallshire's user avatar
3 votes
1 answer
2k views

cannot import a zpool volume : I/O error

this is on nexenta open storage. I have a zpool that is in UNAVAIL state because of some disks. # zpool import -F pool: delta id: XYAZA state: UNAVAIL status: One or more devices are ...
Nikhil Mulley's user avatar
3 votes
1 answer
2k 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: ...
Gleb's user avatar
  • 41
3 votes
4 answers
2k 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 ...
Nick's user avatar
  • 31
2 votes
4 answers
9k 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 ...
ewwhite's user avatar
  • 198k
2 votes
4 answers
2k 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 ...
growse's user avatar
  • 8,050
2 votes
1 answer
6k 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 ...
jáquer's user avatar
  • 133
2 votes
1 answer
774 views

ZFS - is it safe to remove files served by ZFS during a resilver/rebuild?

I have a Nexenta ZFS system serving a large NFS volume (using ~85% of 250 TB). One of the 70 disks failed over a week ago, and the system is resilvering a hot spare without issues (other than the ...
ascendants's user avatar
2 votes
2 answers
4k 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 ...
Luma's user avatar
  • 1,470
2 votes
3 answers
1k 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 ...
ewwhite's user avatar
  • 198k
2 votes
3 answers
4k 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 ...
jotango's user avatar
  • 475
2 votes
2 answers
892 views

Nexentastor CE on Supermicro X10DRL-I

I'm writing here because after 3 hours i'm still not able to install NexentaStorCE on my brand new server. The hardware configuration is: Supermicro x10drl-i Xeon E5 2609V3 16GB DDR4 Kingston I'm ...
CSG's user avatar
  • 737
2 votes
1 answer
1k 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 don'...
b2c's user avatar
  • 21
2 votes
2 answers
2k 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 ...
Myers C's user avatar
  • 131
2 votes
1 answer
2k 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 ...
HonoredMule's user avatar
2 votes
1 answer
9k 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 ...
Bgnt44's user avatar
  • 145
2 votes
0 answers
515 views

nexenta and hotswap sas disks. cfgadm not working properly

There is a problem with the hot-swap SAS drives. Initial data: Nexenta 4.0.2 Server-based Supermicro (MB S5520HC, internal RAID controller RMS2LL080/LSI 2008), 12 HDD SAS 300G 10 HDD SATA 1T, 2 SSD ...
Denis  Kovrov's user avatar
1 vote
3 answers
5k 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 ...
xddsg's user avatar
  • 3,452
1 vote
2 answers
396 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 ...
growse's user avatar
  • 8,050
1 vote
3 answers
2k views

Multiple VLAN on one switch port

I have a HP ProCurve 1810G-8 which I currently use as a normal switch between 3 servers and a firewall. 2 of the servers are ESXi hosts, and one is a Nexentastor box with 2 iSCSI target LUNs. As the ...
Darbio's user avatar
  • 557
1 vote
3 answers
2k 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 ...
James Butler's user avatar
1 vote
3 answers
1k 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 ...
JMS77's user avatar
  • 1,275
1 vote
1 answer
862 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 ...
CrazyDart's user avatar
  • 178
1 vote
1 answer
956 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 ...
Jeroen's user avatar
  • 1,341
1 vote
1 answer
351 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 ...
CSG's user avatar
  • 737