Oracle business hard disk fails to be accessed, prompting for a re-formatting workaround

Tossing for two days, finally to solve the problem, record, also help those who like me to meet similar problems of friends, the data is priceless, we must be cautious.

This hard disk is our company card platform Storage Server LUN, composed of multiple hard disk, according to the truth that it should not have problems, because there are raid and other protection, but there is a problem: hard disk drive can also be seen, but an open prompt "need to format", see this, I think most friends will panic, yes, I also, this is the production environment of data, and it is a card data, which are VIP consumption, there is a lot of money-related data in the inside, if lost, can imagine the results, of course, I certainly will not format it, I click to cancel the format of it, The result then pops up a window, as follows:

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But at this time through the Disk Manager also see to this disk, supposedly, if there is no data, I can immediately format, the disk should be able to re-use immediately, but there is no way, I must get the data back, in order to ensure that the data back to copy one of the other hard disk before the disk can be processed, Thus, the following processes are available:

Download diskgenius------After installation, the surprise is to see this disk, and the data are still in:

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Very happy, so right button needed important files "Copy to the specified folder" D disk, because the hard disk is too large, not all the files are copied, OK, this important data security, but security, at this time still do not dare to do this disk format, because this disk content too much, afraid there is no copy of the data, In particular, the business needs of the data to be disposed of, and it is finished, although the overall but the next thing is a headache, because it is imperative to get the business card Oracle Database recovery as soon as possible, because this disk can not move at the moment, Oracle database files, control files, The location of the log file points to all or this disk, in order not to change the path of the oracle inside the file, so the D-drive letter to the damaged disk (this letter is x), OK, start the Oracle database startup, the result appeared 025 error, said control file has a problem, how can it? are from the plate copy out of Ah, and more than one Ah, is not all bad, after the online search documents, repeated research, the problem is indeed in this control file, because the control file is a binary file, which is the disk location pointing to a number of relevant parameters, so before the modification of the drive letter is obviously wrong, So still thinking how to restore the damaged disk as soon as possible, and then the last no recruit to the grid off.

or constantly online search information, some say that the partition table is bad, and some say that the disk has bad road, according to say all tried the result or not, through Diskgenius, the partition table backup, lest two damage more can't recover, and then search partition, results found partition, but can not save, The result of online search is to save the function Diskgnius need charge, price is not low, about 500 yuan, imagine, I did not do, or find information, rebuild partition, can result the same, after reconstruction also useless, finally by double-click HD2 it jumps out an error, at this time very key, it in repair Disk, Then suddenly found that the local disk good, very inexplicable, of course, the credit or Diskgenius, hope to encounter such problems later, can quickly locate. Because the process has gone through a lot of processes can not be re-, but probably made a record, let me meet the same problem friends have a reference, write here.

The 5.45T hard drive is the result of the recovery.

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Oracle business hard disk fails to be accessed, prompting for a re-formatting workaround