HP P6350 Manual do Utilizador descarregar pdf (Página 166)

Failure effectFault stimulus

to a different served path. When the single-path node

crashes, only the processes executing on that node fail.

In either case, no data is lost or corrupted.

I/O is suspended or process is terminated across this HBA

until switch is back online. No data is lost or corrupted.

The operating system will report the volume in a Mount

Verify state until the MVTIMEOUT limit is exceeded, when

Switch failure (SAN switch disabled)

it then marks the volume as Mount Verify Timeout. No data

is lost or corrupted.

I/O fails over to the surviving controller. No data is lost or

corrupted.

Controller failure

I/O is suspended or process is terminated across this HBA

until EVA is back online. No data is lost or corrupted.

The operating system will report the volume in a Mount

Verify state until the MVTIMEOUT limit is exceeded, when

it then marks the volume as Mount Verify Timeout.

Controller restart

If the LUN is not shared, I/O is suspended or process is

terminated across this HBA until path is restored.

If running OpenVMS 7.3-1 and the LUN is shared, another

cluster node having direct access will take over serving the

device, resulting in no loss of service.

Server path failure

In either case, no data is lost or corrupted.

The operating system will report the volume in a Mount

Verify state until the MVTIMEOUT limit is exceeded, when

it then marks the volume as Mount Verify Timeout.

I/O is suspended or process is terminated across this HBA

until path is restored. No data is lost or corrupted.

The operating system will report the volume in a Mount

Verify state until the MVTIMEOUT limit is exceeded, when

it then marks the volume as Mount Verify Timeout.

Storage path failure

Linux

Failure effectFault stimulus

OS reboots, automatically checks disks. HSV disks must be manually

checked unless auto mounted by the system.

Server failure (host power-cycled)

Short: I/O suspended, possible data loss.

Long: I/O halts with I/O errors, data loss. HBA driver must be reloaded

before failed drives can be recovered, fsck should be run on any failed

drives before remounting.

Switch failure (SAN switch disabled)

Short term: I/O suspended, possible data loss.

Long term: I/O halts with I/O errors, data loss. Cannot reload driver,

need to reboot system, fsck should be run on any failed disks before

remounting.

Controller failure

Short term: I/O suspended, possible data loss.

Long term: I/O halts with I/O errors, data loss. Cannot reload driver,

need to reboot system, fsck should be run on any failed disks before

remounting.

Controller restart

166 Single path implementation

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