Do you see consistent NFS throughput, or is it bursty? We've never used Isilon as storage for TSM, but we have had problems generally with too-low NFS timeouts causing NFS to back off for too long. You can also see this problem manifest itself with NFS timeout messages in the kernel log.
On Fri, May 11, 2018 at 11:39:08AM -0400, Zoltan Forray wrote: > Folks, > > ISP 7.1.7.300 on RHEL 6 10G connectivity > > We need some guidance on trying to figure out why ISP/TSM write perform to > ISILON storage (via FILE DEVCLASS) is so horrible. > > We recently attached 200TB of ISILON storage to this server so we could > empty the 36TB of onboard disk drives to move this server to new hardware. > > However, per my OS and SAN folks, we are only seeing 1Gbs level of data > movement from the ISP server. Doing a regular file copy to this same > storage peaks at 10Gbs speeds. > > So what, if anything, are we doing wrong when it comes to configuring the > storage for ISP to use? Are there some secret controls/settings/options to > tell it to use the storage at max-speeds? > > We tried changing the Est/Max capacity thinking larger files would reduce > the overhead of allocating new pieces constantly. Changed the Mount Limit > to a bigger number. Nothing has helped. > > Only thing uses the storage right now is migrations from the original disk > stgpool. > > > > -- > *Zoltan Forray* > Spectrum Protect (p.k.a. TSM) Software & Hardware Administrator > Xymon Monitor Administrator > VMware Administrator > Virginia Commonwealth University > UCC/Office of Technology Services > www.ucc.vcu.edu > zfor...@vcu.edu - 804-828-4807 > Don't be a phishing victim - VCU and other reputable organizations will > never use email to request that you reply with your password, social > security number or confidential personal information. For more details > visit http://phishing.vcu.edu/ -- -- Skylar Thompson (skyl...@u.washington.edu) -- Genome Sciences Department, System Administrator -- Foege Building S046, (206)-685-7354 -- University of Washington School of Medicine
