02-13-2020
The Raid controller is not showing no problems, as you put it.
RESYNCING means that the controller is remirroring the Raid1 disks because of a problem. Depending on the capacity of the Raid1 disks (they will typically be exactly the same size) this resyncing shouldn't take very long, however, whilst this is in progress, system response time will be impacted. Once complete, the status should become OPTIMAL.
If the resyncing is falling over for some reason then the process might be restarting over and over and OPTIMAL is never achieved. What for that. If that is the case I would be inclined to first if possible take the system down and re-seat all SCSI/SATA cables both ends (disk and mobo) and all disk power supply plugs. Reboot and see if the problem persists. If it does, then most likely one of the disks is faulty. It's possible but unlikely that the raid controller is faulty. All the moving parts are the disks.
You could remove the faulty raid1 drive (the one continuously resyncing) and put it on another machine running diagnostics. Perhaps completely reformat and try again. Otherwise, it's a new disk required.
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LEARN ABOUT OSF1
atapi_ide
atapi_ide(7) Miscellaneous Information Manual atapi_ide(7)
NAME
atapi_ide - Interface for ATAPI or IDE (PC) devices
SYNOPSIS
PCI bus CMD/Acer ATAPI/IDE adapter:
bus pci0 at *
bus ata0 at *
controller scsi0 at ata0 slot 0
controller scsi1 at ata0 slot 1
PCI bus Cypress ATAPI/IDE adapter:
bus pci0 at *
bus ata0 at *
bus ata1 at *
controller scsi0 at ata0 slot 0
controller scsi1 at ata1 slot 0
PCMCIA bus ATA/IDE disk card:
bus pcmcia0 at *
bus ata0 at pcmcia?
controller scsi0 at ata0
DESCRIPTION
Devices commonly known for their use on PC devices as ATA or IDE devices are supported using the SCSI CAM device driver. The ATA standard
has also been expanded to include what are known as ATAPI devices. The SCSI CAM device driver is also used for those disks and CD-ROM
devices. These devices may also be known under the names EIDE, ATA-2, Fast-ATA, or Ultra-ATA.
Beacuse the ATA/IDE standard was not developed until after many of the devices that used this standard were produced, there are many
devices which do not strictly comply with the standard. While it is possible some industry standard devices may appear to work, it is also
possible they will cause hang or data corruption cases when used under more stressful situations. For this reason, it is recommended that
only the supported devices be used. These devices have been tested and are certified for correct operation.
ATAPI/IDE controllers allow the connection of two devices. These two devices are known as the master device and the slave device. If only
one device is connected, that device must be the master (slave-only configurations are not supported). When used by the SCSI CAM device
driver, the IDE master device is assigned SCSI id 0 for that controller. The slave device is assigned SCSI id 1 for that controller. No
other SCSI ids are assigned on that controller. Most ATAPI/IDE adapters contain two channels (known as the primary and secondary). Each
of these channels may contain their own master and slave devices. Therefore, a dual channel ATAPI/IDE controller may contain up to 4
devices (a master and slave pair on each channel). These 4 devices are then accessed as SCSI id 0 and 1 on each channel.
Many SCSI operations translate perfectly for use on IDE. For example, read and write operations are the same. However, many SCSI disk
mode pages are emulated by the IDE device driver. For example, you can display the SCSI inquiry mode pages using the following command: %
scu show inq pages pages are created by the device driver to contain the long (full IDE) form of the device name, serial number, revision,
and the operational modes of the device. Only a shortened version of this information is available with the standard SCSI inquiry command.
Note also that the following command: % scu show pages Shows that the SCSI mode pages contain only partial information. Only that informa-
tion (such as geometry) that the drive reports to the system is able to be reformatted into these emulated SCSI mode pages. Much of the
information (such as RPM) is simply not available from the drive, and therefore not accurately reported.
ATAPI devices are much more closely related to SCSI devices, and as such contain their own mode pages. Therefore, for these devices, the
mode page values reported are those from the device, and no emulation is involved.
ATAPI tape devices are not supported at this time.
FILES
/dev/disk/dsk??? /dev/disk/dsk???
RELATED INFORMATION
SCSI(7), rz(7), and disklabel(8) delim off
atapi_ide(7)