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# stmfadm create-tg myfcserver
19 # stmfadm add-tg-member -g myfcserver wwn.10000000c93805a6
20 # stmfadm create-hg myfcclient
21 # stmfadm add-hg-member -g myfcclient wwn.50060b0000c26204
22 # svcadm enable
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single files across multiple storage nodes. Lustre [5] and Ceph [6] are popular examples of this technology.
Before you can set up a cluster filesystem based on shared disks, you need to look out ... The vanilla kernel includes two cluster filesystems: OCFS2 has been around since 2.6.16 and is thus senior to GFS2. Although OCFS2 is non-trivial under the hood, it is fairly simple to deploy.
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with the total sums for the value of IT equipment lying between a few thousand Euros (sole proprietorship) and about 6 million Euros (large corporation).
The total period of the study was divided into segments
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of read requests issued to the device per second.
w/s
: Number of write requests issued to the device per second.
rMB/s
: Number of megabytes read from the device per second.
wMB/s
: Number
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, some parts of which are standardized and some of which are defined by the device manufacturer.
In production, the Standard MIB II ranges (1.3.6.1.2.1.*) and the vendor-specific area below
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were run on a virtual system (using ESX as the hypervisor) with fixed reservations for CPU and memory. To be more precise, I used a virtual CPU running at 1.5GHz and with 512MB of RAM in the virtual
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is MySQL or SQLite. 128MB disk space and 256MB RAM are the available hardware resources in a shared-hosting environment.
If you need more, you have to upgrade to the Flex level, which means having
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to install RADOS and Ceph. Ceph, which is a plain vanilla filesystem driver on Linux systems (e.g., ext3 or ext4), made its way into the Linux kernel in Linux 2.6.34 and is thus available for any distribution
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or Active Directory-based authentication. Icinga can handle IPv6 – which legacy Nagios cannot. Icinga supports more than 20 languages and has many other benefits to offer.
Nagios proudly points to its long
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-based (Streaming Text Oriented Messaging Protocol) server implementation, for example, ActiveMQ [5] and RabbitMQ [6].
The administrator generates arbitrary job chains on a management system that are then sent
