> The only thing that still stands out is that network > operations (iSCSI and NFS) to external drives are > slow, correct?
Yes, that pretty much resume it. > Just for completeness, what happens if you scp a file > to the three different pools? If the results are the > same as NFS and iSCSI, then I think the network can > be ruled out. This is where it gets interesting... When we use the external disks as a local file system of the Nexenta box then it is fast. We can scp through the network some files from the linux box to the external drives without problem as long as we address the local file system (wherever the disks are). BUT, whenever iSCSI or NFS are involved it all goes sour. > I would be leaning toward thinking there is some > mismatch between the network protocols and the > external controllers/cables/arrays. Sounds like it. The arrays are plenty fast on the same machine/controller/cables/arrays when we're not using a network protocol. > Are the controllers the same hardware/firmware/driver > for the internal vs. external drives? No. The internal drives (the syspool and 13 SSDs for the cache) are on a Dell H700 RAID controller. The external drives are on 3x LSI 9200-8e SAS HBAs connected to 7x Dell MD1000 and MD1200 JBODs. Thanks a lot! -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
