Dell DX6000 Administration Manual
Download Administration manual of Dell DX6000 Desktop, Server for Free or View it Online on All-Guides.com.
Brand: Dell
Category: Desktop , Server , Software , Storage
Type: Administration manual
Model: Dell DX6000 , Dell DX6004S , Dell DX6012S
Pages: 74 (2.04 Mb)
Copyright © 2010 Caringo, Inc.
All rights reserved 41
Version 5.0
December 2010
If an invalid device name is specified in the device component, the node’s log indicates an error
during the format operation; incorrectly specified volumes are not used.
6.5.2. policy
The policy option enables you to instruct DX Storage how to handle a volume. Currently these
handling features involve the formatting characteristics of the physical device.
The format policy allows an administrator to override the default volume expiration behavior by
specifying the :k (keep) policy. See Section 7.1, “Volume Expiration” for more information.
6.5.3. Specifying Exceptions
Although Dell recommends you allow DX Storage to use all disk volumes, you can optionally
exclude certain volumes from being formatted and used by DX Storage. An example follows:
vols = all except /dev/sda /dev/sdb
As the example shows, except is used only with vols = all.
6.6. Configuring Power Management Settings
6.6.1. sleepAfter
This option allows an administrator to determine how long a period of inactivity should occur with no
incoming SCSP requests before DX Storage allows a node or volume to become idle. Setting this
value to a long period will prevent DX Storage nodes and volumes from becoming idle and taking
advantage of power savings. Setting the value to a small number will allow nodes and volumes
to spin down their disks after a reasonable period of inactivity (2 hours by default). The smallest
supported value is 60 seconds.
6.6.2. wakeAfter
This option allows an administrator to determine how long a period of inactivity should occur with no
incoming requests before DX Storage wakes up an idle node or volume in order to allow the health
processor to validate disk and content integrity and replicas. Setting this value to a long period might
unnecessarily put content at risk as the health processor does not run on sleeping nodes. Setting
the number to a small number will reduce power savings, although the volumes and nodes will go
back to "sleep" if additional client activity is not received.
For more information about the health processor, see Section 6.4.2, “hpStartDelay”.
6.7. Managing Other Settings
6.7.1. consolePort
The consolePort option allows an administrator to specify the port on which the web administration
console listens for requests. When DX Storage is deployed into untrusted network environments,
this port should be firewalled so that only administrators can access it. This setting must be the
same on all nodes.
6.7.2. domainHeaders
To comply with RFC 2616, DX Storage currently requires you to specify a Host header with every
SCSP request. This mandatory header was added to HTTP/1.1 to support web servers or server
farms that host more than one domain.