Cisco UCS E Series Hardware Installation Manual page 37

Restarting the E-Series Server Installed in a Cisco ISR 4000 Series
If the oir-stop command is issued and the E-Series Server is not physically removed from the slot, you can
restart the E-Series Server with the start command. From a console terminal, issue the hw-module subslot
slot/0 start command. The console displays the module's changing state.
Router# hw-module subslot 1/0 start
Inserting the E-Series Server in a Cisco ISR 4000 Series
A Cisco ISR 4000 series that is up and running can detect when an E-Series Server is inserted in the SM slot.
After the router detects the E-Series Server, the router software enables power to the server.
Installing or Replacing Hard Disk Drives on the E-Series Servers
The double-wide E-Series Servers can be ordered with two or three hard disk drives (HDD) or solid-state
drives (SSD) preinstalled. The double-wide E-Series Servers support the following Redundant Array of
Independent Disks (RAID) configuration:
• RAID 0 (data striping)—Data is stored evenly in stripe blocks across all disks in the array, providing
• RAID 1 (disk mirroring)—Data is written to two disks, w here the data in both disk drives is identical.
• RAID 5 (disk striping with distributed parity)—Data and parity information is striped and distributed
The double-wide E-Series Servers support adding a hot spare drive under RAID 1. If one of the disk drives
under RAID 1 fails and there is a hot spare drive installed, the system automatically rebuilds the disk image
onto the hot spare drive. The hot spare drive replaces the failed drive as the mirrored drive under RAID 1. To
maintain fault tolerance, you must install another hard disk drive.
The single-wide E-Series Servers and the SM E-Series NCE come with two HDDs or SSDs preinstalled. The
single-wide E-Series Servers and the SM E-Series NCE support RAID 0 and RAID 1.
The EHWIC E-Series NCE comes with one SSD preinstalled. The EHWIC E-Series NCE does not support
RAID.
Danger
Only trained and qualified personnel should be allowed to install or replace this equipment. Statement 1030
Danger
Ultimate disposal of this product should be handled according to all national laws and regulations. Statement
1040
Danger
No user-serviceable parts inside. Do not open. Statement 1073
Cisco UCS E-Series Servers and the Cisco UCS E-Series Network Compute Engine Hardware Installation Guide
fast throughput. There is no data redundancy, and all data is lost if any disk fails.
This p rovides complete data redundancy if one disk fails.
across all disks in the array with distributed parity information. RAID 5 requires three hard disks and
provides limited fault tolerance.
Restarting the E-Series Server Installed in a Cisco ISR 4000 Series
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