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Sun Storage 7000 Unified Storage System: Known iSCSI performance limitations (Doc ID 1374509.1)

Last updated on APRIL 01, 2021

Applies to:

Sun Storage 7310 Unified Storage System - Version All Versions and later
Sun Storage 7210 Unified Storage System - Version All Versions and later
Sun Storage 7410 Unified Storage System - Version All Versions and later
Sun ZFS Storage 7420 - Version All Versions and later
Oracle ZFS Storage ZS3-4 - Version All Versions and later
7000 Appliance OS (Fishworks)
NAS head revision : [not dependent]
BIOS revision : [not dependent]
ILOM revision : [not dependent]
JBODs Model : [not dependent]
CLUSTER related : [not dependent]


Symptoms

In some circumstances, some iSCSI latencies might be discernible on iSCSI client side. This document provides some typical checks for iSCSI performance issues.

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Cause

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In this Document
Symptoms
Cause
Solution
 Pool layout
 ZIL (ZFS Intent Log)
 Volume block size
 Partition alignment
 TCP connections
 Number of iSCSI sessions per iqn target
References

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