The server does raid1 problem sets
- 2020-05-09 19:42:22
- OfStack
Question 1. Suppose I group RAID 1.
1. One of the hard disks is broken. How can I determine which one is the problem? !
2. How can I replace the faulty hard drive after it has been identified? Can you just shut down the hard drive and replace it with a new one? ! Will the mirror disk automatically resynchronize the data? !
3. Can group RAID 1 have multiple hard drives?
1. Whether the two hard disks must be reformatted before they can be used.
5. The safety of RAID chip on the motherboard is safer with array card.
Answer:
1: it can be confirmed according to the port number
2: directly removed for a new mountain line
3: I don't know
4: no, you can directly set a certain block as the main disk, and then it will automatically mirror over the second block
5: hard to say
The troubleshooting of brother RAID 1 is as follows:
A. First of all, RAID1 needs two hard disks of the same brand and the same specification. There are two kinds of failures: data damage and hardware damage (the hard disk itself has been damaged). The latter has two clocks that can be read and can't be read!
B. The easiest way is to remove one of them and then read whether the other one is OK or not. If OK is removed, it is the defective hard disk! The other way around is to test another disk! Use the elimination method to find! If it's an array box, it will display the disk! Intel now has a tool to display the current health of the hard disk on that port, intuitive!!
C, after the bad disk is confirmed, the same hard disk will be replaced and repaired automatically. The time consumed is related to the capacity of the hard disk. The larger the capacity is, the longer the time will be!
Question 2
The computer has 3 hard disks, 1 is a system disk, and 2 2T is an RAID 1. Now the array card is out of the array, how to recover the data?
The answer given by york284: should be the hard disk is broken, connect a new disk to try, boot press the shortcut key into RAID management, there is a self-check, choose to set the spare disk, after building, you can rebulding; You can also enter the system, start the hypervisor, let the program automatically rebulding, recommend the system itself rebulding. It is better to operate step by step in front of the array card specification 1, if you make a mistake, the consequences will be very serious.
Sad, take a place, also want to learn 1.
Connect separately and search the partition using diskgenius. Never rebuild an array when the data is important.
Question 3
The data disk of raid 1 is broken, but it is ok to take a new hard disk and hang it directly, right?
RAID1 broke down a hard disk
Take out the broken one and replace it with a new one. In the RAID control, ADD/REMOVE SPARE (add free disk). After success, RAID state is rebuild
Question 4
One computer, made RAID1 with RAID card, now it can't start, is there any way to read the data on the hard disk?
Well, I just tried, and sure enough! That is to say, after making RAID1, in fact, two hard disks are directly plugged into the computer, which can be read. Right?
Question 5
raid11 hard drives work? I don't know how to make raid roll, how to call one piece raid?
It's very simple. First of all, the principle of raid1 is that two hard disks synchronize data, and in a simpler sense, they mirror each other, so if one hard disk doesn't work
raid1 I broke one disk and scrapped the whole array and that lost the meaning of raid1
So one disk works and I tried this on intel's raid chip
The following is a personal understanding of 1 some simple situation, master mo xiao, I hope you 1 up to add
1 type raid0 can be used to combine multiple small hard disks into one large space hard disk, while improving the reading and writing speed. For example, raid0 is 4T for two 2T hard disks. Many large-scale download stations may use this method.
raid11 is generally suitable for situations where data security is a priority. One and two 2T hard disk groups, raid1, is the storage space of 2T. The two hard disk data are synchronized. If one of them is broken, you can refer to the above method to fix it.
RAID 5 is a storage solution that combines storage performance, data security and storage cost. RAID 5 can be understood as a compromise between RAID 0 and RAID 1. RAID 5 can provide data security for the system, but at a lower level than Mirror and higher disk space utilization than Mirror. RAID 5 has a reading speed similar to that of RAID 0, except that it has an extra parity and writes data slower than a single disk. At the same time, since multiple data correspond to one parity information, the disk space utilization of RAID 5 is higher than that of RAID 1, and the storage cost is relatively low.
1. One of the hard disks is broken. How can I determine which one is the problem? !
2. How can I replace the faulty hard drive after it has been identified? Can you just shut down the hard drive and replace it with a new one? ! Will the mirror disk automatically resynchronize the data? !
3. Can group RAID 1 have multiple hard drives?
1. Whether the two hard disks must be reformatted before they can be used.
5. The safety of RAID chip on the motherboard is safer with array card.
Answer:
1: it can be confirmed according to the port number
2: directly removed for a new mountain line
3: I don't know
4: no, you can directly set a certain block as the main disk, and then it will automatically mirror over the second block
5: hard to say
The troubleshooting of brother RAID 1 is as follows:
A. First of all, RAID1 needs two hard disks of the same brand and the same specification. There are two kinds of failures: data damage and hardware damage (the hard disk itself has been damaged). The latter has two clocks that can be read and can't be read!
B. The easiest way is to remove one of them and then read whether the other one is OK or not. If OK is removed, it is the defective hard disk! The other way around is to test another disk! Use the elimination method to find! If it's an array box, it will display the disk! Intel now has a tool to display the current health of the hard disk on that port, intuitive!!
C, after the bad disk is confirmed, the same hard disk will be replaced and repaired automatically. The time consumed is related to the capacity of the hard disk. The larger the capacity is, the longer the time will be!
Question 2
The computer has 3 hard disks, 1 is a system disk, and 2 2T is an RAID 1. Now the array card is out of the array, how to recover the data?
The answer given by york284: should be the hard disk is broken, connect a new disk to try, boot press the shortcut key into RAID management, there is a self-check, choose to set the spare disk, after building, you can rebulding; You can also enter the system, start the hypervisor, let the program automatically rebulding, recommend the system itself rebulding. It is better to operate step by step in front of the array card specification 1, if you make a mistake, the consequences will be very serious.
Sad, take a place, also want to learn 1.
Connect separately and search the partition using diskgenius. Never rebuild an array when the data is important.
Question 3
The data disk of raid 1 is broken, but it is ok to take a new hard disk and hang it directly, right?
RAID1 broke down a hard disk
Take out the broken one and replace it with a new one. In the RAID control, ADD/REMOVE SPARE (add free disk). After success, RAID state is rebuild
Question 4
One computer, made RAID1 with RAID card, now it can't start, is there any way to read the data on the hard disk?
Well, I just tried, and sure enough! That is to say, after making RAID1, in fact, two hard disks are directly plugged into the computer, which can be read. Right?
Question 5
raid11 hard drives work? I don't know how to make raid roll, how to call one piece raid?
It's very simple. First of all, the principle of raid1 is that two hard disks synchronize data, and in a simpler sense, they mirror each other, so if one hard disk doesn't work
raid1 I broke one disk and scrapped the whole array and that lost the meaning of raid1
So one disk works and I tried this on intel's raid chip
The following is a personal understanding of 1 some simple situation, master mo xiao, I hope you 1 up to add
1 type raid0 can be used to combine multiple small hard disks into one large space hard disk, while improving the reading and writing speed. For example, raid0 is 4T for two 2T hard disks. Many large-scale download stations may use this method.
raid11 is generally suitable for situations where data security is a priority. One and two 2T hard disk groups, raid1, is the storage space of 2T. The two hard disk data are synchronized. If one of them is broken, you can refer to the above method to fix it.
RAID 5 is a storage solution that combines storage performance, data security and storage cost. RAID 5 can be understood as a compromise between RAID 0 and RAID 1. RAID 5 can provide data security for the system, but at a lower level than Mirror and higher disk space utilization than Mirror. RAID 5 has a reading speed similar to that of RAID 0, except that it has an extra parity and writes data slower than a single disk. At the same time, since multiple data correspond to one parity information, the disk space utilization of RAID 5 is higher than that of RAID 1, and the storage cost is relatively low.