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cluster:squidward.che:plankton [2014/03/18 17:22] frey |
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| - | ====== CCEI Storage Appliance ====== | ||
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| - | The ''plankton.che.udel.edu'' appliance is a home-grown medium-scale storage system. Under the hood it uses a ZOL (ZFS on Linux) filesystem. ZFS has several benefits: | ||
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| - | * **Per-directory quota control**: any directory (be it a user's storage, content to be visible on the web, whatever) can have a quota (maximum size) or a reservation (guaranteed size) | ||
| - | * **Storage pools**: the filesystem doesn't live on physical hard disks, it is spread across groups of disks; the filesystem is easily grown by adding more disks | ||
| - | * **Increased integrity**: ZFS has advanced data-integrity features like triple-parity RAID and self-healing of silent corruption | ||
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| - | ZFS on Linux is an open source project that derives from the Sun (now Oracle) ZFS code that is a part of the Solaris operating system. | ||
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| - | With ZOL providing the storage, the appliance needs interfaces through which users (CCEI staff and students) can access it. The following file-sharing mechanisms are currently configured on ''plankton'': | ||
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| - | * **Samba**: Also known as CIFS or SMB, Samba allows you to mount directories on ''plankton'' on your Windows/Mac/Linux desktop and work with them as you would any other disk (drag and drop to copy, double-click to open and edit). Samba is NOT a secure file transfer protocol, though, so it is available ONLY when you are on-campus. Even when on-campus, don't use it on any data you consider to be private. | ||
| - | * **SFTP/SCP**: The Secure FTP and Secure CP programs (part of the SSH client suite) can be used from anywhere on the Internet to connect to ''plankton'' and manipulate files. | ||
| - | * **NFS**: Each CCEI student with an account on ''squidward'' as well as on ''plankton'' can access his/her ''plankton'' directory directly from the head node of ''squidward.'' | ||
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| - | <WRAP center round important 60%> | ||
| - | Please note that the storage appliance is currently a demonstration unit and all information on this page is subject to change. | ||
| - | </WRAP> | ||