NEC Express5800/R110i-1 Maintenance Manual

Also see for EXP333: User guide

Contents

5. TroubleshootingExpress5800/R110i-1, T110i-S, T110i Maintenance Guide 35Chapter 1 Maintenance5.6 Problem of RAID System[?] Unable to rebuild hard disk drive Is the capacity of the hard disk drive to be rebuilt enough? Use a hard disk drive with the same capacity as that of the faulty hard disk drive. Is the logical drive RAID0? RAID0 cannot be rebuilt because it has no redundancy. Replace the failed hard disk drive, recreate theconfiguration information, initialize it, and recover the drive using backup data.[?] Unable to rebuild the hard disk drive automatically Did you secure sufficient time for replacing the hard disk drive (hot swap)? To make auto-rebuild work, secure at least 90 seconds from when a hard disk drive is removed to whenthe drive is installed. Are settings correct? Use the LSI Software RAID Configuration Utility to check the Auto Rebuild settings.TOPMENU  Objects  Adapter  Auto Rebuild* The Auto Rebuild settings are not available in Off-line Utility.[?] Unable to perform Consistency Check Is the logical drive Critical or Degraded? Replace the failed hard disk drive with new one, and then perform rebuilding. Is RAID0 configured for the logical drive?RAID0 has no data redundancy, and therefore, Consistency Check is disabled in the RAID0 configuration.[?] A part of physical device information of Universal RAID Utility is not be displayed correctly on LSIEmbedded MEGARAID. A part of physical device information of Universal RAID Utility may not be displayed correctly. If 512e HDD is used, Sector format of physical device information of Universal RAID Utility displayed512 HDD. There is no problem.[?] Unable to set Write-Back for Cache Mode If an extra battery for N8103-176/177/178/179/206/207/208 RAID controller is faulty, not connected, orinsufficiently charged, then the Cache Mode is changed to Write Through even if you specify WriteBack (with BBU, not forcefully).For the description of the Cache Mode, see "Write Cache Setting" in the user's guide for the RAIDcontroller you are using.[?] DISK LED flashes DISK LED flashes frequently even while the hard disk drive is not accessed. When Patrol Read is running, the DISK LED flashes even if the hard disk drive is not being accessed. IfSATA hard disk drive is used, the DISK LED may stay on.