`<div dir="ltr">Hi, Sergey.<div>My be following information will be useful for you.<br><div>We use solaris as HA NAS in following configuration:</div><div><br></div><div>DATA_DISKS: HUC101818CS4204 / HUH728080AL5204 </div><div>SLOG: PX04SHB020 / PX05SMB040 / HUSMH8020BSS204 (PX04SHB020 has best performance <a href="https://dhelios.blogspot.ru/2016/11/ssd-hgst-husmh8020bss204_11.html">https://dhelios.blogspot.ru/2016/11/ssd-hgst-husmh8020bss204_11.html</a>)</div><div>L2ARC: HUSMH8080BSS204 / PX05SMB080</div><div><br></div><div>Servers: </div>2 x Cisco UCS 240M4 ( 2 x E5-2697A, 768gb ram, 3 local hard disk for OS, 2 x UCSC-SAS9300-8E, 2 x Intel X520 Dual Port 10Gb SFP+ Adapter)<br><div><br></div><div>JBODS:</div>216BE2C-R741JBOD - for SFF disks<br>SC847E2C-R1K28JBOD - for LFF disks<div><br></div><div>We have two HA variant:</div><div>1) Solaris 11.3 + Solaris Cluster 4.3 (for VMware)</div><div>2) OmniOS + RSF-1 (as Cinder for Openstack)</div><div><br></div><div>If you need some additional info, I'll be glad to share any information that I have.</div><div><div><br></div><div><div class="gmail_quote"><div dir="ltr">ср, 27 сент. 2017 г. в 22:39, sergey ivanov <<a href="mailto:sergey57@gmail.com">sergey57@gmail.com</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi,<br>
as end-of-life of r151014 approaches, we are planning upgrade for our<br>
NFS servers.<br>
I'm thinking about 2 servers providing ISCSI targets, and 2 another<br>
OmniOS servers using these ISCSI block devices in mirrored ZPOOL<br>
setup. IP address for NFS service can be a floating IP between those 2<br>
servers.<br>
I have the following questions:<br>
1. Are there any advantages to have separate ISCSI target servers and<br>
NFS servers or I should better combine one ISCSI target and NFS<br>
server on each of 2 hosts?<br>
2. I do not want snapshots, checksums, and other ZFS features for<br>
block devices at the level where they are exported as ISCSI targets, -<br>
I would prefer these features at the level where these block devices<br>
are combined into mirror Zpools. Maybe it's better to have these ISCSI<br>
target servers running some not so advanced OS and have 2 Linux boxes?<br>
3. But if I have SSD for intent log and for cache, - maybe they can<br>
improve performance for ZVOLs used as block devices for ISCSI targets?<br>
<br>
Does anybody have experience setting up such redundant NFS servers?<br>
--<br>
Regards,<br>
Sergey Ivanov<br>
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