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=draft=
== draft ==
*nappit is a http interface for setting up zfs and iscsi on a few different operating systems.
*this page is about setting up napp-it omnios to serve iscsi and nfs for pve to use as storage.
*per comments on forum  omnios is a good choice for iscsi nas.
*TBD  set up high availabilty iscsi.


==rough notes to be formatted and added  ==
== operating system install ==
*see http://www.napp-it.org/doc/downloads/napp-it.pdf
*mirror rpool : https://omnios.omniti.com/wiki.php/GeneralAdministration#MirroringARootPool


== links ==
== network mtu 9000 ==
TBD add more links?  
NOTE: do this before setting up network. it is hard to do after.
 
* from http://www.saqr.org/index.php?option=com_content&view=article&id=100:change-default-mtu&catid=51:solaris&Itemid=72
use <other command > to know which drv file to edit. see napp-it.pdf
<pre>
vi /kernel/drv/ixgbe.conf
default_mtu = 9000;
</pre>
then reboot
 
check result
<pre>
root@sys4:/root#  dladm show-linkprop -p mtu ixgbe0
LINK        PROPERTY        PERM VALUE          DEFAULT        POSSIBLE
ixgbe0      mtu            rw  9000          1500          1500-15500
</pre>
 
== access web page ==
change the IP: http://10.10.10.254:81/cgi-bin/admin.pl
       
INFO: First login: admin, no password; delete napp-it.cfg to get defaults
 
Please do not disable Javascript. For realtime monitoring you need a HTML5 websocket capable browser like a newer Firefox or Google Chrome.
Logins are valid for current day on all appliances with the same password. It is suggested to use a secure SAN or management network.
 
== pool and zfs ==
* see napp-it pdf.  create pool and zfs
 
==ssh keys at pve for iscsi ==
'''iscsi  ssh key must be set up.
 
follow https://pve.proxmox.com/wiki/Storage:_ZFS_over_iSCSI#Platform_notes ssh exchange part.
 
== comstar ==
 
=== iSCSI target service ===
home > services > Comstar. Enable Comstar and ISCSI target service


http://www.napp-it.org/manuals/
=== comstar for kvm ===
We want to make certain that iscsi is served only on one network. If two paths exists to your storage and this is intentional you must install multipath on every proxmox host otherwise chances are eminent that you will mess-up your storage. Alternative you can create a bond to your storage. If the bond is to provide real HA it must span over two switches and to be able to do this it will require stackable switches.
here '>' means item to click next.
# '''Create target''': comstar > targets > CREATE ISCSI Target
# '''Create target portal group''': comstar > target portal groups > create target portal-group. Choose IP and name
# '''Connect the target portal group to the target''':  comstar > target portal groups > add target. Choose portal group created above
# '''portal group to ISCSI target''': Without portal group, ISCSI target are published on every valid IP interface Comstar > Target Portal Groups > add member. Select portal group from above.


HardForum: http://hardforum.com/showthread.php?t=1573272
check that only intended interface serves iscsi. From cli run this:
itadm list-target -v
check 'tpg-tags:'. Make sure 'default' is not set, else iscsi  may be served on every interface.
comstar/iscsi can now be used for KVM.


ServetheHome:  https://forums.servethehome.com/index.php?forums/solaris-nexenta-openindiana-and-napp-it.26/
== lxc and iscsi notes ==


== hardware ==
NOTE: '''DRAFT'''
cpu must be compatable  see https://illumos.org/hcl/


http://ptribble.blogspot.dk/2016/03/supermicro-illumos-compatible-server.html
Note that the ZFS-over-iSCSI plugin which directly creates ZFS datasets for each guest
only supports Qemu at the moment. 2016-05


==operating system install ==
Backups: If you have one dataset exported via ISCSI (i.e., one "storage" in
http://www.napp-it.org/doc/downloads/napp-it.pdf
Proxmox terminology) for each LXC container, you can back those datasets up
individually with zfs-send/receive or pve-zsync. otherwise you can only backup
individual containers using vzdump.  


there are a few install options. I used this option:
For LXC: Manually create one volume per lxc. Had to do same for ceph, check notes to make sure size is not too small.
:4. OS Installation options
:4.1 manual barebone installation from USB (use this per default)
* Download usb-dd file from http://omnios.omniti.com/wiki.php/Installation


=== 1-disks > volumes > create volume ===
:Name: zvol-8801 [change 8801 to vmid? ] , 
:size xxG  [ over estimate a little to start ].
:uncheck thin provisioned.


== access web page ==
=== 2-Comstar > Logical Units > create volume LU ===
http://<IP>:81/cgi-bin/admin.pl
:select pool.
       
:select type o LU: volume
Info: First login: admin, no password; delete napp-it.cfg to get defaults
:click submit
:look twords bottom of screen,
:Choose the volume created in step 1 to create a LUN from.
:click create


Please do not disable Javascript. For realtime monitoring you need a HTML5 websocket capable browser like a newer Firefox or Google Chrome.  
=== 3-Comstar > Views > add view ===
Logins are valid for current day on all appliances with the same password. It is suggested to use a secure SAN or management network.
:logical unit GUID : Choose the LUN created above to add a view to.
:to target group:  All
:and to host group: All
:force lun...: auto


== zpools ==
Your LUN should now be visible from proxmox for usage as base volume
ten 480GB ssd drives


https://forum.proxmox.com/threads/shared-storage-suggestion-for-a-5-node-cluster.26727/
napp-it list view:
<pre>
View for LU : 600144f07a4c2f000000575c98580001 /dev/zvol/rdsk/tank/zvol-8801
View Number  Host group  target group  LUN Number  LU
  0            All            All  6487        600144f07a4c2f000000575c98580001
</pre>


Mir: I would suggest 2 pools:
== iscsi setup at pve ==
   
http://pve.proxmox.com/wiki/Storage:_ZFS_over_iSCSI
1. Raid10 or striped mirror pool (2x2 disks should be sufficient) for I/O intensive servers like database servers.


2. raidz2 pool (the remaining 6 disks) for the rest
https://forum.proxmox.com/threads/shared-storage-suggestion-for-a-5-node-cluster.26727/page-2#post-134576  :


: '''make this more clear:'''   
My recommendation would be to create two different storages in proxmox,
   
- one using zfs_over_iscsi for KVM which provides all zfs features like (linked) clones, life snapshots, etc.
   
- and one using LVM with network backing as explained here: https://pve.proxmox.com/wiki/Storage_Model#LVM_Groups_with_Network_Backing for lxc.
   
All the above can be done from a single zfs pool.


see zil [ write-log ] section at https://www.napp-it.org/manuals/concept_en.html
Manually create a volume and share this volume through an iscsi target.  ?????? where


when in doubt use a write-log. see notes and tests at [[iscsi/tests]]  or forum search.
Using this target for the iscsi plugin to create a shared LUN for proxmox on which you create a lvm storage with network backing.  


napp-it refers to zil as 'write-log'  << TBD check this
Use the same zfs pool for configuration of the zfs_over_iscsi storage to use for KVM's.


=== mirror ===
The zfs_over_iscsi plugin will not overwrite the zvol used for your iscsi target for lvm storage.
set up 4 drive mirror


1- create pool 2 drive mirror
In this way you have options to running cluster wide VM's using both kvm and lxc which can be life migrated across the cluster either manually or through HA.


2- extend pool with 2 drive mirror
make sure multipath is not happening.


to start do not use a write-log [ zil ] write-log
From pve check all physical connections at pve to ensure that there is just one target:
This is correct set up :
<pre>
sys5  ~ # iscsiadm -m discovery -t st -p 10.1.10.41:3260
iscsiadm: No portals found
sys5 ~ # iscsiadm -m discovery -t st -p 10.2.2.41:3260
10.2.2.41:3260,2 iqn.2010-09.org.napp-it:1459891666
</pre>
We want only the 10G network IP to accept icsi  connections


my 1-st tests show similiar speed to raidz1 + zil .
TBD:  how to make it so there is not multipath .  


=== raidz1 ===
=== iscsi for kvm ===
5 ssd drives
* kvm: per Mir on forum:  If disks is running on top of ZFS you get best performance by using cache = nocache (the default).
* using zfs_over_iscsi for KVM which provides all zfs features like (linked) clones, life snapshots, etc.


1 write-log ssd   Intel super one << put model numbers TBD
* pve > storage > add  zfs over iscsi
:ID:  iscsi-sys4
:Portal:  10.2.2.41
:Pool:  data
:Block Size: 8k    [   8k gives better performance but slightly more space is wasted ]
:Target:  iqn.2010-09.org.napp-it:1459891666 [ one way to get target name to copy and paste is run the following ].
iscsiadm -m discovery -t st -p 10.2.2.41:3260
:Group:  leave blank
:iSCSI provider: comstar
:Thin Provision: Optional but allows to over provision your storage
:Write Cache: Enable.  [If pools option 'sync' is standard or always it is safe to enable write cache for improved performance]


with a write-log drive vzrestore was 22 times faster then without.
===iscsi for lxc ===
'''the following has a big issue and should not be used .


=== cli adjustments ===
last attempt on 4/23/2016 had same result as 6/11/2016 .  so something needs to be done before to prevent lvm/archive issue.
*there probably is a way to do this from napp-it
<pre>
<pre>
# needed cli for atleast no atime:
# 2016-04-23 working on it still
zfs set atime=off tank
#
zfs set compression=lz4 tank
rm -fv /etc/lvm/archive/turnkey
 
removed ‘/etc/lvm/archive/turnkey_00000-1307945933.vg’
removed ‘/etc/lvm/archive/turnkey_00001-199645953.vg’
removed ‘/etc/lvm/archive/turnkey_00002-31014016.vg’
removed ‘/etc/lvm/archive/turnkey_00003-2116062829.vg’
removed ‘/etc/lvm/archive/turnkey_00004-1380013922.vg’
removed ‘/etc/lvm/archive/turnkey_00005-993676611.vg’
removed ‘/etc/lvm/archive/turnkey_00006-1713215890.vg’
removed ‘/etc/lvm/archive/turnkey_00007-1175412519.vg’
removed ‘/etc/lvm/archive/turnkey_00008-1970149466.vg’
removed ‘/etc/lvm/archive/turnkey_00009-856308435.vg’
removed ‘/etc/lvm/archive/turnkey_00010-926217773.vg’
removed ‘/etc/lvm/archive/turnkey_00011-1017541994.vg’
removed ‘/etc/lvm/archive/turnkey_00012-1432515756.vg’
removed ‘/etc/lvm/archive/turnkey_00013-118498318.vg’
removed ‘/etc/lvm/archive/turnkey_00014-1298808030.vg’
removed ‘/etc/lvm/archive/turnkey_00015-839679495.vg’
removed ‘/etc/lvm/archive/turnkey_00016-1161424480.vg’
removed ‘/etc/lvm/archive/turnkey_00017-1942660863.vg’
removed ‘/etc/lvm/archive/turnkey_00018-184747485.vg’
removed ‘/etc/lvm/archive/turnkey_00019-1017670881.vg’
removed ‘/etc/lvm/archive/turnkey_00020-1950107248.vg’
removed ‘/etc/lvm/archive/turnkey_00021-729446236.vg’
removed ‘/etc/lvm/archive/turnkey_00022-1595834097.vg’
removed ‘/etc/lvm/archive/turnkey_00023-753888356.vg’
removed ‘/etc/lvm/archive/turnkey_00024-1984875033.vg’
</pre>
</pre>


==configure omnios==
===Network mtu 9000===
* from http://www.saqr.org/index.php?option=com_content&view=article&id=100:change-default-mtu&catid=51:solaris&Itemid=72


  vi /kernel/drv/ixgbe.conf
* https://forum.proxmox.com/threads/shared-storage-suggestion-for-a-5-node-cluster.26727/page-2#post-134706
  default_mtu = 9000;
* https://pve.proxmox.com/wiki/Storage_Model#LVM_Groups_with_Network_Backing for lxc.
 
:Pay attention to these to important recommendations:
#disable 'use LUNs direcly'
#Enable shared use (recommended)
 
1- pve storage > add iscsi >
:ID  zvol-8801 ,
:Portal  10.2.2.21
:Target:  your choice.
:'''disable use LUNs directly'''
 
2- Using this target for the iscsi plugin to create a shared LUN for proxmox on which you create a lvm storage with network backing.
:pve > storage >  add LVM
:storage name:  lvm-8801-
:For 'Base Storage', use the drop down menu to select the previously defined iSCSI target.  zvol-8801 (iSCSI)
:For 'Base Volume' select  The correct Lun. Picking wrong LUN will cause bad issues.
:For 'Volume Group Name' give a unique name (this name cannot be changed later).  vg-8801
:Content: LXC Only
:'''Enable shared use (recommended)'''
:Click Add
 
== kvm notes ==
If you use thin provisioned Zvols you should choose scsi disks and virtio-scsi controller because comstar (the iscsi daemon in Omnios) supports the scsi unmap command. This means the trim command is honored by comstar and therefore trimmed blocks will be released to the pool from the Zvol.
* https://forum.proxmox.com/threads/suggestions-for-san-config.26216/page-2#post-131751
 
== nfs for backups ==
* create a zfs to store dump files: create zfs tank/bkup
* click ZFS Filesystems. set NFS to ON for zfs. '''or put in the 'rw=..' line below . I think that was needed for cli access .
* enable nfs  services > nfs  .  make sure service is online.
* at pve add nfs storage
* permissions : see https://forum.proxmox.com/threads/nappit-omnios-how-to-set-up-for-backup-storage.26921/


then reboot
* In Omnios 'ZFS Filesystems' click the NFS on your datasets which has NFS enabled and add the following after 'sharenfs='
:''note the nfs has to be turned off , then click nfs again and put in the setting''


check result
I used this:
<pre>
<pre>
root@sys4:/root#  dladm show-linkprop -p mtu ixgbe0
rw=@10.2.2.0/24:@10.1.0.0/16,root=@10.2.2.0/24:10.1.0.0/16
LINK        PROPERTY        PERM VALUE          DEFAULT        POSSIBLE
ixgbe0      mtu            rw  9000          1500          1500-15500
</pre>
</pre>
==backup from omnios==
* TBD add more.
* http://napp-it.org/extensions/replication_en.html
* https://github.com/oetiker/znapzend/blob/master/README.md
==support==
omnios has commercial support and modules. if your company will use napp-it / omnios then consider supporting the project.
== links ==
*https://forum.proxmox.com/threads/iscsi-san-presented-as-nfs-using-freenas.26679/
*http://www.napp-it.org/index_en.html
*http://www.napp-it.org/manuals/
*install & initial set up: http://www.napp-it.org/doc/downloads/napp-it.pdf
*tuning  http://www.napp-it.org/manuals/tuning.html
*http://omnios.omniti.com/wiki.php/GeneralAdministration
*HardForum: http://hardforum.com/showthread.php?t=1573272
*ServetheHome:  https://forums.servethehome.com/index.php?forums/solaris-nexenta-openindiana-and-napp-it.26/
*http://virtuallyhyper.com/2013/04/installing-and-configuring-omnios/
[[Category: HOWTO]]

Latest revision as of 11:01, 29 November 2016

draft

  • nappit is a http interface for setting up zfs and iscsi on a few different operating systems.
  • this page is about setting up napp-it omnios to serve iscsi and nfs for pve to use as storage.
  • per comments on forum omnios is a good choice for iscsi nas.
  • TBD set up high availabilty iscsi.

operating system install

network mtu 9000

NOTE: do this before setting up network. it is hard to do after.

use <other command > to know which drv file to edit. see napp-it.pdf

 vi /kernel/drv/ixgbe.conf
 default_mtu = 9000;

then reboot

check result

root@sys4:/root#  dladm show-linkprop -p mtu ixgbe0
LINK         PROPERTY        PERM VALUE          DEFAULT        POSSIBLE
ixgbe0       mtu             rw   9000           1500           1500-15500 

access web page

change the IP: http://10.10.10.254:81/cgi-bin/admin.pl

INFO: First login: admin, no password; delete napp-it.cfg to get defaults

Please do not disable Javascript. For realtime monitoring you need a HTML5 websocket capable browser like a newer Firefox or Google Chrome. Logins are valid for current day on all appliances with the same password. It is suggested to use a secure SAN or management network.

pool and zfs

  • see napp-it pdf. create pool and zfs

ssh keys at pve for iscsi

iscsi ssh key must be set up.

follow https://pve.proxmox.com/wiki/Storage:_ZFS_over_iSCSI#Platform_notes ssh exchange part.

comstar

iSCSI target service

home > services > Comstar. Enable Comstar and ISCSI target service

comstar for kvm

We want to make certain that iscsi is served only on one network. If two paths exists to your storage and this is intentional you must install multipath on every proxmox host otherwise chances are eminent that you will mess-up your storage. Alternative you can create a bond to your storage. If the bond is to provide real HA it must span over two switches and to be able to do this it will require stackable switches.

here '>' means item to click next.

  1. Create target: comstar > targets > CREATE ISCSI Target
  2. Create target portal group: comstar > target portal groups > create target portal-group. Choose IP and name
  3. Connect the target portal group to the target: comstar > target portal groups > add target. Choose portal group created above
  4. portal group to ISCSI target: Without portal group, ISCSI target are published on every valid IP interface Comstar > Target Portal Groups > add member. Select portal group from above.

check that only intended interface serves iscsi. From cli run this:

itadm list-target -v

check 'tpg-tags:'. Make sure 'default' is not set, else iscsi may be served on every interface. comstar/iscsi can now be used for KVM.

lxc and iscsi notes

NOTE: DRAFT

Note that the ZFS-over-iSCSI plugin which directly creates ZFS datasets for each guest only supports Qemu at the moment. 2016-05

Backups: If you have one dataset exported via ISCSI (i.e., one "storage" in Proxmox terminology) for each LXC container, you can back those datasets up individually with zfs-send/receive or pve-zsync. otherwise you can only backup individual containers using vzdump.

For LXC: Manually create one volume per lxc. Had to do same for ceph, check notes to make sure size is not too small.

1-disks > volumes > create volume

Name: zvol-8801 [change 8801 to vmid? ] ,
size xxG [ over estimate a little to start ].
uncheck thin provisioned.

2-Comstar > Logical Units > create volume LU

select pool.
select type o LU: volume
click submit
look twords bottom of screen,
Choose the volume created in step 1 to create a LUN from.
click create

3-Comstar > Views > add view

logical unit GUID : Choose the LUN created above to add a view to.
to target group: All
and to host group: All
force lun...: auto

Your LUN should now be visible from proxmox for usage as base volume

napp-it list view:

View for LU : 600144f07a4c2f000000575c98580001 /dev/zvol/rdsk/tank/zvol-8801
 View Number  	 Host group  	 target group  	 LUN Number  	 LU 
  0  	          All  	           All  	 6487        	 600144f07a4c2f000000575c98580001 

iscsi setup at pve

http://pve.proxmox.com/wiki/Storage:_ZFS_over_iSCSI

https://forum.proxmox.com/threads/shared-storage-suggestion-for-a-5-node-cluster.26727/page-2#post-134576  :

make this more clear:

My recommendation would be to create two different storages in proxmox,

- one using zfs_over_iscsi for KVM which provides all zfs features like (linked) clones, life snapshots, etc.

- and one using LVM with network backing as explained here: https://pve.proxmox.com/wiki/Storage_Model#LVM_Groups_with_Network_Backing for lxc.

All the above can be done from a single zfs pool.

Manually create a volume and share this volume through an iscsi target.  ?????? where

Using this target for the iscsi plugin to create a shared LUN for proxmox on which you create a lvm storage with network backing.

Use the same zfs pool for configuration of the zfs_over_iscsi storage to use for KVM's.

The zfs_over_iscsi plugin will not overwrite the zvol used for your iscsi target for lvm storage.

In this way you have options to running cluster wide VM's using both kvm and lxc which can be life migrated across the cluster either manually or through HA.

make sure multipath is not happening.

From pve check all physical connections at pve to ensure that there is just one target: This is correct set up :

sys5  ~ # iscsiadm -m discovery -t st -p 10.1.10.41:3260
iscsiadm: No portals found
sys5  ~ # iscsiadm -m discovery -t st -p 10.2.2.41:3260
10.2.2.41:3260,2 iqn.2010-09.org.napp-it:1459891666

We want only the 10G network IP to accept icsi connections

TBD: how to make it so there is not multipath .

iscsi for kvm

  • kvm: per Mir on forum: If disks is running on top of ZFS you get best performance by using cache = nocache (the default).
  • using zfs_over_iscsi for KVM which provides all zfs features like (linked) clones, life snapshots, etc.
  • pve > storage > add zfs over iscsi
ID: iscsi-sys4
Portal: 10.2.2.41
Pool: data
Block Size: 8k [ 8k gives better performance but slightly more space is wasted ]
Target: iqn.2010-09.org.napp-it:1459891666 [ one way to get target name to copy and paste is run the following ].
iscsiadm -m discovery -t st -p 10.2.2.41:3260
Group: leave blank
iSCSI provider: comstar
Thin Provision: Optional but allows to over provision your storage
Write Cache: Enable. [If pools option 'sync' is standard or always it is safe to enable write cache for improved performance]

iscsi for lxc

the following has a big issue and should not be used .

last attempt on 4/23/2016 had same result as 6/11/2016 . so something needs to be done before to prevent lvm/archive issue.

#  2016-04-23 working on it still
#
rm -fv /etc/lvm/archive/turnkey

removed ‘/etc/lvm/archive/turnkey_00000-1307945933.vg’
removed ‘/etc/lvm/archive/turnkey_00001-199645953.vg’
removed ‘/etc/lvm/archive/turnkey_00002-31014016.vg’
removed ‘/etc/lvm/archive/turnkey_00003-2116062829.vg’
removed ‘/etc/lvm/archive/turnkey_00004-1380013922.vg’
removed ‘/etc/lvm/archive/turnkey_00005-993676611.vg’
removed ‘/etc/lvm/archive/turnkey_00006-1713215890.vg’
removed ‘/etc/lvm/archive/turnkey_00007-1175412519.vg’
removed ‘/etc/lvm/archive/turnkey_00008-1970149466.vg’
removed ‘/etc/lvm/archive/turnkey_00009-856308435.vg’
removed ‘/etc/lvm/archive/turnkey_00010-926217773.vg’
removed ‘/etc/lvm/archive/turnkey_00011-1017541994.vg’
removed ‘/etc/lvm/archive/turnkey_00012-1432515756.vg’
removed ‘/etc/lvm/archive/turnkey_00013-118498318.vg’
removed ‘/etc/lvm/archive/turnkey_00014-1298808030.vg’
removed ‘/etc/lvm/archive/turnkey_00015-839679495.vg’
removed ‘/etc/lvm/archive/turnkey_00016-1161424480.vg’
removed ‘/etc/lvm/archive/turnkey_00017-1942660863.vg’
removed ‘/etc/lvm/archive/turnkey_00018-184747485.vg’
removed ‘/etc/lvm/archive/turnkey_00019-1017670881.vg’
removed ‘/etc/lvm/archive/turnkey_00020-1950107248.vg’
removed ‘/etc/lvm/archive/turnkey_00021-729446236.vg’
removed ‘/etc/lvm/archive/turnkey_00022-1595834097.vg’
removed ‘/etc/lvm/archive/turnkey_00023-753888356.vg’
removed ‘/etc/lvm/archive/turnkey_00024-1984875033.vg’


Pay attention to these to important recommendations:
  1. disable 'use LUNs direcly'
  2. Enable shared use (recommended)

1- pve storage > add iscsi >

ID zvol-8801 ,
Portal 10.2.2.21
Target: your choice.
disable use LUNs directly

2- Using this target for the iscsi plugin to create a shared LUN for proxmox on which you create a lvm storage with network backing.

pve > storage > add LVM
storage name: lvm-8801-
For 'Base Storage', use the drop down menu to select the previously defined iSCSI target. zvol-8801 (iSCSI)
For 'Base Volume' select The correct Lun. Picking wrong LUN will cause bad issues.
For 'Volume Group Name' give a unique name (this name cannot be changed later). vg-8801
Content: LXC Only
Enable shared use (recommended)
Click Add

kvm notes

If you use thin provisioned Zvols you should choose scsi disks and virtio-scsi controller because comstar (the iscsi daemon in Omnios) supports the scsi unmap command. This means the trim command is honored by comstar and therefore trimmed blocks will be released to the pool from the Zvol.

nfs for backups

  • In Omnios 'ZFS Filesystems' click the NFS on your datasets which has NFS enabled and add the following after 'sharenfs='
note the nfs has to be turned off , then click nfs again and put in the setting

I used this:

rw=@10.2.2.0/24:@10.1.0.0/16,root=@10.2.2.0/24:10.1.0.0/16

backup from omnios

support

omnios has commercial support and modules. if your company will use napp-it / omnios then consider supporting the project.

links