Applicable Models

• TS-h2490F
• TS-h3088XU
• TVS-h1288X/TVS-h1688X
• TS-h1886XU-RP/ TS-1886XU-RP
• TS-h686/TS-h886
• TNS-h1083X
• TS-h1283XU/TS-h1683XU/TS-h2483XU
• TS-h977XU-RP/TS-h1277XU-RP/TS-h1677XU-RP/TS-h2477XU-RP
• TVS-h1675U-RP/TVS-h1275U-RP/TVS-h875U-RP/TVS-h875U
• TVS-675
• TS-h973AX/TS-473A/TS-673A/TS873A
• TS-873AU/TS-873AU-RP/TS-1273AU-RP/TS-1673AU-RP
• TVS-672X/TVS872X/TVS-472XT/TVS-672XT/TVS-872XT/TVS-672N/TVS-872N

Important Notes

• QuTS hero does not support downgrading from h4.5.4 to h4.5.3 or earlier.

Security Updates

• Fixed a minor security issue.

Fixed Issues

• SnapSync jobs for iSCSI LUNs would fail after users updated QuTS hero to h5.0.0.1952.
• QuLog Center would display unexpected syslog entries for the local host.

Other Changes

Storage & Snapshots

• To ensure data security, system stability, and storage performance, the maximum number of drives for a single RAID group is now 16 (applicable to RAID 5, RAID 6, RAID TP, and subgroups of RAID 50 and RAID 60). Nevertheless, users can combine multiple RAID groups into a large storage pool that contains more than 16 drives, using RAID 50, RAID 60, or RAID 10 as the RAID configuration. This enhancement will only be applied to new RAID groups. All existing RAID groups and storage systems will not be affected.