System and method for coordinating cluster state information
First Claim
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1. A method for managing a cluster of file servers, comprising:
- writing coordinating information for a plurality of servers of the cluster of servers to a master mailbox record, the master mailbox record written to a specific location on each disk of a set of lock disks, the set of lock disks having a plurality of disks, the plurality of disks chosen so that in the event of failure of a server of the plurality of servers, at least one lock disk will be available to the remaining servers; and
writing a second copy of the coordinating information to the master mailbox record of the set of lock disks.
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Abstract
A method for managing a cluster of file servers is disclosed. The method has the first step of writing coordinating information for a plurality of servers of the cluster of servers to a master mailbox record, the master mailbox record written to a specific location on each disk of a set of lock disks, the set of lock disks having a plurality of disks, the plurality of disks chosen so that in the event of failure of a server of the plurality of servers, at least one lock disk will be available to the remaining servers. The method has the second step of writing a second copy of eth coordinating information to the master mailbox record of the set of lock disks.
53 Citations
23 Claims
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1. A method for managing a cluster of file servers, comprising:
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writing coordinating information for a plurality of servers of the cluster of servers to a master mailbox record, the master mailbox record written to a specific location on each disk of a set of lock disks, the set of lock disks having a plurality of disks, the plurality of disks chosen so that in the event of failure of a server of the plurality of servers, at least one lock disk will be available to the remaining servers; and writing a second copy of the coordinating information to the master mailbox record of the set of lock disks. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A cluster of file servers as an apparatus, comprising:
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a processor to write coordinating information for a plurality of servers of the cluster of servers to a master mailbox record, the master mailbox record written to a specific location on each disk of a set of lock disks, the set of lock disks having a plurality of disks, the plurality of disks chosen so that in the event of failure of a server of the plurality of servers, at least one lock disk will be available to the remaining servers; and an operating system to write a second copy of the coordinating information to the master mailbox record of the set of lock disks. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A computer readable storage media, comprising:
said computer readable storage media containing instructions for execution on a processor for the practice of a method of managing a cluster of file servers, the method having the steps of, writing coordinating information for a plurality of servers of the cluster of servers to a master mailbox record, the master mailbox record written to a specific location on each disk of a set of lock disks, the set of lock disks having a plurality of disks, the plurality of disks chosen so that in the event of failure of a server of the plurality of servers, at least one lock disk will be available to the remaining servers; writing a second copy of the coordinating information to the master mailbox record of the set of lock disks.
Specification