Difference between revisions of "Dell Server"
From AlphaBook
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== RAID 1 == | == RAID 1 == | ||
| + | * RAID 1 consists of an exact copy (or mirror) of a set of data on two or more disks; a classic RAID 1 mirrored pair contains two disks. | ||
== RAID 5 == | == RAID 5 == | ||
| + | * RAID 5 consists of block-level striping with distributed parity. It requires that all drives but one be present to operate. | ||
| + | * Upon failure of a single drive, subsequent reads can be calculated from the distributed parity such that no data is lost. | ||
| + | * RAID 5 requires at least three disks. | ||
== RAID 5 + Hotspare == | == RAID 5 + Hotspare == | ||
| + | * RAID 5+Spare is a RAID 5 array in which one disk is used as spare to rebuild the system as soon as a disk fails. | ||
| + | * At least four disks are required. | ||
Latest revision as of 13:15, 18 September 2018
Lost package when ping iDRAC IP address
- iDRAC may not work properly on 10/100/1000M Auto mode
- Set 100M on switch port manually
racadm
- racadm -r 192.168.0.20 -u root -p xxx get BIOS.SysInformation.SystemServiceTag
- racadm -r 192.168.0.20 -u root -p xxx get BIOS.SysInformation. SystemModelName
- racadm -r 192.168.0.20 -u root -p xxx get System.LCD.CurrentDisplay
- racadm -r 192.168.0.20 -u root -p xxx serveraction powerup
- racadm -r 192.168.0.20 -u root -p xxx serveraction powerdown
- racadm -r 192.168.0.20 -u root -p xxx serveraction powercycle
- racadm -r 192.168.0.20 -u root -p xxx serveraction powerstatus
RAID 1
- RAID 1 consists of an exact copy (or mirror) of a set of data on two or more disks; a classic RAID 1 mirrored pair contains two disks.
RAID 5
- RAID 5 consists of block-level striping with distributed parity. It requires that all drives but one be present to operate.
- Upon failure of a single drive, subsequent reads can be calculated from the distributed parity such that no data is lost.
- RAID 5 requires at least three disks.
RAID 5 + Hotspare
- RAID 5+Spare is a RAID 5 array in which one disk is used as spare to rebuild the system as soon as a disk fails.
- At least four disks are required.
