Servicing Storage Drives; Storage Drive Hot-Plug Conditions; Storage Drive Failure And Raid - Oracle Exadata X10M Service Manual

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Servicing Storage Drives

This section describes how to service storage drives.
Storage drives are replaceable components that do not require you to power off the server
before servicing. For more information about replaceable components, see
Breakdown
Note:
The procedures and illustrations in this chapter apply to both NVMe and SAS
storage drives, except where noted.
The following sections describe how to remove and replace hard-disk drives (HDDs) and
NVMe solid-state drives (SSD) storage drives.

Storage Drive Hot-Plug Conditions

The SAS hard-disk drives (HDDs) or NVMe solid-state drives (SSDs) that are installed in the
server are in most cases hot-pluggable. The hot-plug capability depends on how the drives
are configured and whether the drive is an NVMe device. To hot-plug a drive you must take
the drive offline before you can remove it. When you take the drive offline, you prevent any
application from accessing the drive and remove the logical software links to the drive. For an
NVMe storage drive, you must not only take the drive offline, but also power down the drive
slot.
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.
• The operating system does not support hot plug for the drive.
If any of these disk drive conditions are true, then you must shut down the system before you
replace the drive. See
Note:
Replacing a drive does not require extending or removing the server from a rack.

Storage Drive Failure and RAID

A single storage drive failure does not cause a data failure if you configured the storage
drives as a mirrored RAID 1 volume (optional). The storage drive can be removed, and when
and Replaceable Components.
Powering Down the Server.
Illustrated Parts
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