Questions tagged [nexenta]
Nexenta is a Unix-based storage appliance operating system centered around the ZFS filesystem.
83
questions
23
votes
1
answer
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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 ...
16
votes
4
answers
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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 ...
11
votes
2
answers
4k
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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.
...
10
votes
3
answers
8k
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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-...
9
votes
3
answers
5k
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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 ...
9
votes
7
answers
5k
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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
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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 ...
7
votes
2
answers
7k
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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 ...
7
votes
3
answers
10k
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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 ...
6
votes
2
answers
898
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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 ...
6
votes
2
answers
2k
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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 ...
5
votes
4
answers
19k
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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 ...
5
votes
4
answers
5k
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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
...
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 ...
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 ...
4
votes
6
answers
8k
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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 ...
4
votes
2
answers
6k
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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 (...
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 ...
4
votes
1
answer
4k
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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 ...
4
votes
1
answer
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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
votes
1
answer
2k
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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 ...
4
votes
1
answer
2k
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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 ...
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) ...
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 ...
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 ...
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 ...
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 ...
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: ...
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 ...
2
votes
4
answers
9k
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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
votes
4
answers
2k
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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 ...
2
votes
1
answer
6k
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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 ...
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 ...
2
votes
2
answers
4k
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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
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 ...
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 ...
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 ...
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'...
2
votes
2
answers
2k
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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
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 ...
2
votes
1
answer
9k
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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 ...
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 ...
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 ...
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 ...
1
vote
3
answers
2k
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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 ...
1
vote
3
answers
2k
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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 ...
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 ...
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 ...
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 ...
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 ...