- Create a Fibre Channel LUN on your NetApp and map it to your NexentaStor machine (I’m using version 3.0.2 in this example). For this example, I’ve created a 10GB LUN on a filer running ONTAP 7.2:
netapp01> lun show /vol/nexenta01/lun01/lun /vol/nexenta01/lun01/lun 10g (10737418240) (r/w, online, mapped)There are eight paths from our NetApp to our NexentaStor appliance, so the LUN appears eight times on the “qlc” adapter (lines 9-16 below):
nmc@nexenta01:/$ lunsync Cleanup obsolete (dangling) device links? Yes Re-enumerating LUNs... done. nmc@nexenta01:/$ show lun LUN ID Device Type Size Volume Mounted Attach GUID c0t0d0 sd0 disk 272.3GB syspool no mega_sas 60024e805102c100118a3fa70ae8937a c1t0d0 sd128 cdrom No Media no ata - c2t5*DDDd0 sd6 disk 10GB no qlc 60a98000486e542f5034577076716469 c2t5*DDDd0 sd4 disk 10GB no qlc 60a98000486e542f5034577076716469 c2t5*DDDd0 sd7 disk 10GB no qlc 60a98000486e542f5034577076716469 c2t5*DDDd0 sd5 disk 10GB no qlc 60a98000486e542f5034577076716469 c3t5*DDDd0 sd3 disk 10GB no qlc 60a98000486e542f5034577076716469 c3t5*DDDd0 sd2 disk 10GB no qlc 60a98000486e542f5034577076716469 c3t5*DDDd0 sd8 disk 10GB no qlc 60a98000486e542f5034577076716469 c3t5*DDDd0 sd1 disk 10GB no qlc 60a98000486e542f5034577076716469 syspo~/swap zvol 1.0GB syspool no
Archive for the ‘fibre channel’ tag
NexentaStor in front of a NetApp FC LUN using MPxIO
Links, 8/30/2008: Usable space, licensing Windows, multiprotocol VMware storage
- Your Usable Capacity May Vary – Chuck conducts a thought deployment comparing EMC, HP and NetApp usable space for a 120 disk Exchange deployment. And while he glosses over a couple perhaps non-minor issues (RAID-5 vs RAID-DP and whether EMC’s snapshots are adequately performant), he does hit one of NetApp’s weak spots dead on: Usable capacity, particularly on LUNs if you follow the 100% space reservation recommendation. (Being a NetApp admin these days, I can’t really comment on what he writes about HP – it’s been a long time since I’ve touched that StorageWorks stuff – and I can only repeat what I’ve heard others say about EMC.) More Chuck on this here.
- How to License Windows VMs in a Non Microsoft Virtual Environment: Why Windows Server 2008 Datacenter Edition may be the best choice. (Seen at blog.scottlowe.org.)
- Welcome – My friend, NetApp’s Vaughan Stewart: Chad Sakac highlights some flaws in NetApp’s TR-3697 (“Performance Report: Multiprotocol Performance Test of VMware® ESX 3.5 on NetApp Storage Systems”):
What’s the scoop with:
* 4K/8K IO size only
* 2Gbps FC
* You guys have “throughput/IOPs” shown only in relative, not in absolute.
* 84 144GB drives with 16 VMs driving the IOMeter workloads with * 10GB of data each on them = 1.3% utilization (rounding up!).
8/14/2008 Link Dump
- Performance Report: Multiprotocol Performance Test of VMware® ESX 3.5 on NetApp Storage Systems: A complementary whitepaper to VMware’s own work comparing Fibre Channel, iSCSI and NFS as storage protocols for VMware ESX. (Seen at blog.scottlowe.org.)