Hello, I have an issue with my storage (EQL PS6100 24x 600GB 15k sas in raid 50). When i do a simple file copy within a VM its very slow, after investigation i discoverd that vmware and my san...
See more...
Hello, I have an issue with my storage (EQL PS6100 24x 600GB 15k sas in raid 50). When i do a simple file copy within a VM its very slow, after investigation i discoverd that vmware and my san reports a very high write / read latency when i generate bigger (64kb +) io blocks. Besides that, when i go above 128KB blocksize my san keeps reporting its doing 128KB blocks. Even when i generate 256 or 512KB blocks. I installed windows directly on the same hw and ran the same tests then i have no problem what so ever (also the high latency is allmost gone).. I`m testing with iometer: 512b 100% write 0%random 4kb 100% write 0%random 16kb 100% write 0%random 32kb 100% write 0%random 64kb 100% write 0%random 128kb 100% write 0%random 256kb 100% write 0%random 512b 100% read 0%random 4kb 100% read 0%random 16kb 100% read 0%random 32kb 100% read 0%random 64kb 100% read 0%random 128kb 100% read 0%random 256kb 100% read 0%random physical: virtual: Everything is latest version, mem driver, eql firmware, nic drivers, esx etc etc I`m using dell switches (pc62xx) and a mix of r610+r620+PE1950/2950 Regards