Mirrored disk partition with disk partition modification contemporaneous with client application access
First Claim
Patent Images
1. A method, comprising the steps of:
- mirroring a first content portion of a first disk partition to a second content portion of a second disk partition; and
modifying a first one of the first content portion and the second content portion contemporaneously with access by one or more client applications to one or more subportions of a second one of the first content portion and the second content portion;
wherein the step of modifying the first one of the first content portion and the second content portion contemporaneously with access by the one or more client applications to the one or more subportions of the second one of the first content portion and the second content portion comprises the steps of;
detaching a submirror associated with the first disk partition from a first metadevice associated with a primary file system;
attaching the submirror to a second metadevice associated with a secondary file system; and
employing the secondary file system to modify the first content portion of the first disk partition.
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Abstract
A first content portion of a first disk partition is mirrored to a second content portion of a second disk partition. A first one of the first content portion and the second content portion that is modified contemporaneously with access by one or more client applications to one or more subportions of a second one of the first content portion and the second content portion.
18 Citations
19 Claims
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1. A method, comprising the steps of:
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mirroring a first content portion of a first disk partition to a second content portion of a second disk partition; and
modifying a first one of the first content portion and the second content portion contemporaneously with access by one or more client applications to one or more subportions of a second one of the first content portion and the second content portion;
wherein the step of modifying the first one of the first content portion and the second content portion contemporaneously with access by the one or more client applications to the one or more subportions of the second one of the first content portion and the second content portion comprises the steps of;
detaching a submirror associated with the first disk partition from a first metadevice associated with a primary file system;
attaching the submirror to a second metadevice associated with a secondary file system; and
employing the secondary file system to modify the first content portion of the first disk partition. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An apparatus, comprising:
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a first disk partition that stores contents of a primary file system;
a second disk partition that is able to store the contents of the primary file system;
a first submirror that is associated with the first disk partition and a first metadevice, wherein the first metadevice is associated with the primary file system; and
a second submirror that is associated with the second disk partition and a second metadevice, wherein the second metadevice is associated with a secondary file system;
wherein a detachment of the second submirror from the second metadevice and an attachment of the second submirror with the first metadevice serves to transfer a mirrored copy of the contents of the primary file system to the second disk partition;
wherein a detachment of the first submirror from the first metadevice and an attachment of the first submirror with the second metadevice serve to facilitate modification of the contents of the primary file system through the second metadevice contemporaneously with access to the contents of the primary file system through the first metadevice. - View Dependent Claims (17, 18)
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19. An article, comprising:
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one or more computer-readable signal-bearing media; and
means in the one or more media for mirroring a first content portion of a first disk partition to a second content portion of a second disk partition; and
means in the one or more media for modifying a first one of the first content portion and the second content portion contemporaneously with access by one or more client applications to one or more subportions of a second one of the first content portion and the second content portion;
wherein the means in the one or more media for modifying comprises;
means in the one or more media for detaching a submirror associated with the first disk partition from a first metadevice associated with a primary file system;
means in the one or more media for attaching the submirror to a second metadevice associated with a secondary file system; and
means in the one or more media for employing the secondary file system to modify the first content portion of the first disk partition.
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Specification