Intelligent configuration for snapshot based backups
This disclosure relates to a method, article of manufacture, and apparatus of intelligent configuration for snapshot based backups. In some embodiments, this includes obtaining a snapshot method, locating a source to be backed up, locating a paring configuration, if the paring configuration cannot be located, locating one or more target devices in a storage group using the snapshot method, and if the pairing configuration is located, obtaining one or more corresponding target devices from the configuration and validating the one or more corresponding target devices within the storage group using the snapshot method.
1. A method comprising:
determining a snapshot method for a backup by a server;
locating a source to be backed up by the server;
locating a paring configuration which identifies one or more corresponding target devices for the source by the server;
if the paring configuration cannot be located, locating one or more target devices in a storage group using the snapshot method;
if the pairing configuration is located, obtaining the one or more corresponding target devices for the source from the paring configuration and validating the one or more corresponding target devices for the source within the storage group using the snapshot method; and
wherein the validating the one or more corresponding target devices is performed according to rules that specify criteria to be considered when locating the target device in the storage group, the criteria specifying that each of the one or more corresponding target devices in the storage group are: visible and in a ready state or not locked and in a split pair state.
2. The method as recited in claim 1 , wherein locating the source to be backed up comprises:
locating a path to be backed up; and
obtaining a list of source LUNs making up the path.
3. The method as recited in claim 1 , wherein locating the source to be backed up comprises: adding a new source to the storage group;
locating a path to the new source; and
obtaining a list of source LUNs making up the path.
4. The method as recited in claim 1 , wherein locating the source to be backed up comprises: updating the source;
locating a path to the source; and
obtaining a list of source LUNs making up the path.
5. The method as recited in claim 1 , wherein locating the one or more target devices in a storage group using the snapshot method comprises:
obtaining a list of available devices in the storage group using the snapshot method;
among the list of available devices, generating a list of currently paired devices with the source using the snapshot method;
generating a list of unrelated but available devices using the source, the list of currently paired devices, and the list of available devices;
determining whether the list of currently paired devices is empty;
if the list of currently paired devices is not empty, returning a success message; and
if the list of currently paired devices is empty, locating the one or more target devices from the list of unrelated but available devices, if nothing can be located from the list of unrelated but available devices, returning an error message, otherwise returning a success message.
6. A storage system comprising:
a processor configured to obtain a snapshot method for a backup by a server, locate a source to be backed up by the server, locate a paring configuration which identifies one or more corresponding target devices for the source by the server, if the paring configuration cannot be located, locate one or more target devices in a storage group using the snapshot method,
if the pairing configuration is located, obtain the one or more corresponding target devices for the source from the paring configuration and validate the one or more corresponding target devices for the source within the storage group using the snapshot method to confirm that the one or more corresponding target devices are located in a lookup table;
wherein the validating the one or more corresponding target devices is performed according to rules that specify criteria to be considered when locating the target device in the storage group, the criteria specifying that each of the one or more corresponding target devices in the storage group are: visible and in a ready state or not locked and in a split pair state.
7. A computer program product comprising a non-transitory computer usable medium having machine readable code embodied therein for:
obtaining a snapshot method for a backup by a server;
locating a source to be backed up by the server;
locating a paring configuration which identifies one or more corresponding target devices for the source by the server;
if the paring configuration cannot be located, locating one or more target devices in a storage group using the snapshot method;
if the pairing configuration is located, obtaining the one or more corresponding target devices for the source from the paring configuration and validating the one or more corresponding target devices for the source within the storage group using the snapshot method to confirm that the one or more corresponding target devices are located in a lookup table;
wherein the validating the one or more corresponding target devices is performed according to rules that specify criteria to be considered when locating the target device in the storage group, the criteria specifying that each of the one or more corresponding target devices in the storage group are: visible and in a ready state or not locked and in a split pair state.