Time spent on LUN formatting


The formatting speed of a single disk can be 50 MB/S. A maximum of four RAID groups can be formatted. The LUNs in the same RAID group are formatted in serial mode.

Other related questions:
Impact of LUN formatting on performance
If you perform read and write operations on the LUN that is being formatted, the read and write performance deteriorates.

Method used to format a LUN on the storage
1. The LUN must be formatted after the LUN is created on the storage device. 2. After the LUN is created on the storage device, it is automatically formatted on the storage device without manual intervention. 3. The used LUNs cannot be formatted manually.

Whether the LUN can be read and written (whether the LUN can be used during initialization)
During LUN formatting, the LUN can be mapped to the host for reads and writes.

What time formats are supported by the information center and how to configure these formats
The information center supports the following five time formats. -boot: indicates the relative time, a period of time since system start. The format is xxxxxx.yyyyyy. xxxxxx is the higher-order 32 bits of the milliseconds elapsed since system start; yyyyyy is the lower-order 32 bits of the milliseconds elapsed since system start. -date: indicates the current date and time of the system, in the format of mm dd yyyy hh:mm:ss. -format-date: indicates that the timestamp is expressed in YYYY-MM-DD hh:mm:ss format. -none: indicates that the output information does not contain the timestamp. -short-date: indicates the short date. This timestamp differs from date in that the year is not displayed. The time format is set based on the information type. The time stamp format of logs generated by the device is the same as that of logs transmitted on all channels. You can set the time stamp format of logs using the following command. system-view [HUAWEI] info-center timestamp log ? boot Information time stamp of relative time type date Information time stamp of date type format-date Information time stamp of date another type none None information time stamp short-date Information time stamp of short date type: (MM:DD) You can set the time format as service requires.

Whether the IP address can be changed during LUN formatting
During LUN formatting, you can change the IP address of the management or service interface.

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