Manageability Issues; Cached Data In A Flash Cache Module Is Cleared During System Reboot And Takeover And Giveback; The Wrfile Command Might Fail To Capture All Input During A Cut-And-Paste Operation Performed Through The Rlm Or Sp - IBM N Series Manual

Manageability issues

This section describes known issues and limitations with the management
interface that affect your ability to manage the storage system. These issues
might include problems with command behavior, command output, or error
messages presented in the Data ONTAP CLI or web interface and problems
with UNIX or operating system commands used to interface with your
storage system.
v "Cached data in a Flash Cache module is cleared during system reboot and
takeover and giveback"
v "The wrfile command might fail to capture all input during a
cut-and-paste operation performed through the RLM or SP"
v "NTP version used to communicate with a newly configured NTP server
defaults to v3" on page 89
v "RLM configuration is not saved if the RLM's Ethernet cable is not
connected" on page 89
v "If your system uses rtc or rdate as the protocol for time synchronization"
on page 89
v "Obsolete timed options" on page 89
v "Issues regarding the timed log" on page 90
v "Shutdown delay in N3400 systems when critical thresholds are crossed" on
page 90
Cached data in a Flash Cache module is cleared during system reboot
and takeover and giveback
Your storage system clears the cached data in a Flash Cache module during a
system reboot and takeover and giveback. For example, the system clears the
cache when you reboot to upgrade Data ONTAP.
Because there is no cached data in the Flash Cache module, the system serves
initial read requests from disk, which results in decreased read performance
during this period. The system repopulates the cache as it serves read
requests.
The wrfile command might fail to capture all input during a cut-and-paste
operation performed through the RLM or SP
If you access the system console from the RLM or SP and you perform a
cut-and-paste operation on graphic input that involves using the wrfile
command, the command might fail to capture all input.
This behavior is a result of the unusually high sustained data rate in the
cut-and-paste operation. You can avoid this issue by using an SSH console
session instead of accessing the system console through the RLM or SP.
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IBM System Storage N series: Data ONTAP 8.0.4 7-Mode Release Notes