TDT RZ2, Manual, Page: 114 / 736

2-18 System 3
RS4 Data Streamer
Reformatting: When reformatting a storage array, the
progress completed (%) as well as the estimated
amount of time remaining is displayed.
Resyncing: If a mirrored array type has been formatted,
the progress completed (%) as well as the estimated
amount of time remaining for the Resync process is
displayed. See “Mirrored” on page 2-20, for more
information.
File System Check: If the RS4 is performing a file
system check, the progress completed (%) and
estimated amount of time remaining is displayed. During
this time the status array will not be ready.
Check button: When the storage array is in mirrored configuration, disk
check button appears at the bottom left corner. Pressing
the Check button begins a disk check to see if the
data on both images are identical. This process can take
several hours. A progress bar and an estimated time to
completion are displayed.
During this time the Ports tab will report that the array
status is “Checking”. No data access should occur
during checking.
The button will stay depressed for the duration of the
disk check.
You can stop the disk check at any time by pressing
the Check button again.
TDT recommends performing a disk check on a mirrored
configuration every 7-30 days.
Data Ports:
Displays storage information for all installed memory buffers and any
communication errors present.
Memory Buffers (U/F/A): Displays the number of memory buffers currently used,
free, and allocated.
Communication Errors: Displays the current count of communication errors
between the RS4 and interfaced RZ2s. This value
should be zero. If not, the current data session may not
contain valid data.
If the count increases continuously at a high rate
(>1500 errors per second), the RZ connected to that
port might not be synchronized to the PCI card. Check
the fiber optic connection from the RZ device to the PCI
card and use zBusMon to confirm RZ to PC
communication.
Clear Error Count: Press to clear all communication errors currently listed.
View Log Window:
A log stores relevant messages and any communication errors
encountered while the RS4 is in use. Click to open and view the log window. The
log.txt file can be copied from the storage array for transfer to a PC.