Is it possible to migrate from Raid 0 to Raid 1 without affecting the data ?
Twincom - Frequently Asked QuestionsYes, ad another disk and the Twincom DDM software and run the install. All stays the same. In Twincom software, adding extra disks is just making them known to the Twincom software, enable the disks and sync the disks.
How about RAID 0 + 1 or RAID 10?
Xssist™ Group Pte. Ltd. (Singapore) Frequently Asked Q...This gives good results but at very high prices as we use SCSI drives. Instead of doing this, we simply setup a second server. This allows better performance. There is diminishing returns in improving only 1 aspect of a server. The other parts of the server become the bottleneck. It is usually better value for us to setup a second server, than to have a RAID 10 setup, in a webhosting server. See similar questions...
Can RAID 1 be combined with another type of RAID, such as RAID 0?
RAID 1 Data Recovery FAQ | Vantage Data Recovery (800)487-56...The combination of a mirrored configuration with striping added is referred to as RAID 1+0 (also called RAID 10). In this scenario, the configuration will provide mirroring (RAID 1) across two (2) or more drives and will "stripe" the data in real-time to a second mirrored drive set. This unique combination will provide data redundancy and some speed advantages, but it does so at the expense of usable storage space. See similar questions...
Is it possible to recover data easily through RAID?
RAID Recovery Frequently Asked Questions - FAQA RAID system uses the capacity of one disk to retain parity information for the other disks, so that if any disk fails, the contents of the failed disk can be automatically reconstructed from the data on the other disks. Even with a failed disk, the data in the RAID array can still be fully accessed. See similar questions...
Why not RAID 0 for performance?
Xssist™ Group Pte. Ltd. (Singapore) Frequently Asked Q...RAID 0 stripes data across several disks. This results in very good read and write performance. However, failure of any 1 drive will lead to data loss. Instead of using RAID 0, we can setup a second RAID 1 drive, and split half of the accounts over to the second RAID 1 drive. This will distribute the disk IO over the 2 RAIDs, with good data redundancy. See similar questions...
Can data be recovered from a re-formatted RAID 1 volume?
RAID 1 Data Recovery FAQ | Vantage Data Recovery (800)487-56...Many times information is still recoverable, depending on how the drives were re-formatted. A high-level re-format (using Windows, for example), will create what will appear to be a new "clean" volume - but the original data will still be on the disk in the "free and available" space. A low-level format routine (as performed using the controller software) will overwrite every sector, and in the process destroys the original data. Perhaps, but it wouldn't be the safest approach. See similar questions...
Will All Data Migrate from DMS to FDMS on October 1?
Regulations.gov Frequently Asked QuestionsAll dockets which are open for comment will be available in FDMS on October 1, 2007. All historical data will be transitioned into FDMS in the coming weeks. The transition is expected to be complete by October 31, 2007. See similar questions...
What do the signal names 'signal 0', 'signal 1', ... mean?
Frequently Asked Questions about PhysioNetnoted in the answers to the previous two questions, signal names recorded in header files describe the signals in each record. In rare cases, however, this information is missing, usually because it was not preserved when the signals were recorded. Names of the form 'signal N' are default signal names used in such cases; they may appear in header files explicitly, or they may be displayed by PhysioToolkit software if no explicit signal names appear in a header file. See similar questions...
How can 0=1?
Zen Computer FAQIn zen thinking, though, "nothing" is still "something." Sitting in meditation means doing nothing and something at the same time. Similar examples abound in everyday life. In politics, nonparticipation in the system still makes a political statement. In television, "Seinfeld" can famously proclaim itself to be about nothing, yet still find material for laughs. Yes, zero does not equal one, but with the right perspective, zero does equal one. See similar questions...
With RAID 1, if both mirrored drives fail, can data still be recovered?
RAID 1 Data Recovery FAQ | Vantage Data Recovery (800)487-56...In many situations, data will be recoverable. The quality and integrity of the data recovered will depend on the extent of the damage incurred to each failed storage device. If the mirrored volume was operating properly up to the point of failure, then there should be identical copies of the data on at least two (2) drives which will provide 2 chances to recover the same data. See similar questions...
What is RAID Level 1?
Dedicated Hosting Services :: Frequently Asked QuestionsRAID Level 1 is a disaster recovery method where one hard drive mirrors a second one. In the event that one of your drives fails, the other will immediately continue to serve data. An additional feature with RAID is that, if one drive is overtaxed, the overflow requests will be handled by the second drive. RAID 1 requires two drives, but you will lose the disk space of one of the drives. See similar questions...
Why is Raid 1 important?
DrakNet-Welcome to Drak.Net Web HostingRAID 1 is a particular type of RAID technology which ensures that all data is duplicated on pairs of disks simultaneously. This ensures that in the event of a hard drive failure, the server can switch to the other disk with no interruption in service. Also, if multiple requests for the same data are made, demand can be distributed between two disk copies therefore decreasing response time for data access. See similar questions...
Can the VPS come with RAID 1?
Xssist™ Group Pte. Ltd. (Singapore) Frequently Asked Q...Absolutely. We can provide software RAID1 for your VPS; and additional harddisks if required for your backups. See similar questions...
Question #1 What is a data spill?
Guidance for Agency Declassification Plans FAQsA data spill has been defined earlier in this FAQ as a security incident that results in the transfer of classified or sensitive (for example, privacy, contract sensitive) information to unaccredited and unauthorized information systems, applications or media. Data spills can be identified when either the originator or sender realizes his error, or when a reader discovers the spilled information. See similar questions...
Why do you use RAID 1 instead of RAID 5?
Xssist™ Group Pte. Ltd. (Singapore) Frequently Asked Q...RAID 1 has better performance compared to RAID 5, in particular, the write performance is much better. As web and email servers does a lot of writes, to log files, email spools etc, RAID 5 is not suitable for the server. In terms of redundancy, RAID 5 has 1 parity drive in an array (of possibly 7 drives). With a failure of 1 drive, the array performance is badly degraded. This may lead to much higher IO waits, and the server will be unresponsive. See similar questions...
What is the definition of a "RAID 1" volume?
RAID 1 Data Recovery FAQ | Vantage Data Recovery (800)487-56...RAID 1" refers to a "Redundant Array of Inexpensive (or Independent) Disks" that have been established in a Level 1, or mirrored, drive set. A RAID 1 volume is a set of disk drives that are configured for data to be written to 2 volumes simultaneously. This configuration provides complete data redundancy in the event of a drive failure. See similar questions...
What are the arguments against RAID 1 configurations?
RAID 1 Data Recovery FAQ | Vantage Data Recovery (800)487-56...RAID 1 (mirroring) results in loss of half of the physical storage capacity of the drives comprising the volume. For example, if two (2) 500GB hard drives are configured as a RAID 1 volume, only 500GB is available for data storage. Using the same drives in a RAID 0 (striped) configuration, total data storage would equal 1000GB (or approximately 1 terabyte). Also, if damaged or corrupted data is written to one drive, it is also written to the second drive. See similar questions...
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