Servicing Storage Drives (CRU)
Storage Drives Hot-Plug Conditions
The hard-disk drives (HDDs), solid-state drives (SSDs), and NVMe SSD drives installed in
the server are hot-pluggable, but this capability depends on how the drives are configured. To
hot-plug a drive you must be able to take the drive offline before you can remove it. When you
take the drive offline, you prevent the operating system and any application from accessing the
drive.
Caution -
Data loss. Although the system can remain fully powered on, NVMe drives must be
powered off using operating system commands before removal. Failure to do so can result in
data loss and/or cause the operating system to crash.
The following conditions inhibit the ability to perform hot-plugging of a drive:
■
The drive provides the operating system, and the operating system is not mirrored on
another drive.
■
The drive cannot be logically isolated from the online operations of the server.
If either of the above restrictions is true, then you must shut down the system before you replace
the drive. See
“Powering Off the server” on page 101
.
Note -
Replacing a storage drive does not require removing the server from a rack.
Storage Drive Failure and RAID
A single storage drive failure does not cause a data failure if the storage drives are configured
as a RAID (level 1 or higher). The storage drive can be removed and a new storage drive
inserted, which is then automatically rebuilt with data from the rest of the array with no need to
reconfigure the RAID parameters. If a hot-spare was configured to replace the failed drive, the
new replacement storage drive should be automatically configured as the new hot-spare.
For instructions for configuring RAID on the server, refer to
“Configuring Server Drives for OS
Oracle Server X5-4 Installation Guide
If optional NVMe drives are part of the RAID, special replacement instructions must be
followed to prevent an operating system crash. See:
■
“Removing and Replacing an NVMe Storage Drive Using Oracle Solaris” on page 121
■
“Removing and Replacing an NVMe Storage Drive Using Oracle Linux” on page 125
114
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