Specifications

PS4000 Hardware Maintenance Basic Array Information
1–4
Warning
condition
LED
Off No power or normal condition.
Flashing orange One or more of the following has occurred:
• RAID set is degraded but still functioning.
• RAID set (volume level) has lost blocks.
• Component temperature is near a limit.
• Fan failed or fan RPMs exceed limit.
• Power supply is not installed or has no power.
• Cache battery has less than 72 hours of charge.
• Only one control module installed or control
module has failed over.
• Control module has insufficient RAM.
• Syncing active and secondary control modules.
• No communication between control modules.
• Installed spare disk drive does not have enough
capacity to replace a disk drive in a RAID set.
• A non-critical hardware component failed.
• Real-time clock battery is low.
Critical error
condition
LED
Off No power or normal condition.
Flashing orange One or more of the following has occurred:
• RAID is not functioning.
• Lost block table is full.
• Temperature exceeds upper or lower limit.
• Control module cache has lost data.
• A cooling module is not installed.
• Both fans on a cooling module have failed.
• Cache battery temperature is too high to charge
battery.
• NVRAM coin cell battery failed.
• Cache contains data that does not belong to any of
the installed disk drives.
• More than one valid RAID set exists in array.
• Control modules are different models.
• A critical hardware component has failed.
• Operations panel failed or not installed.
• Storage enclosure processor that monitors array
components has experienced a failure.
Table 1-2: Operations Panel Descriptions (Continued)
Item Status Description