What is the recommendation on the backup of a recovery catalog?

Similar Questions

• What does the backup conduit?

  I'm confused about what did the duct of the backup.

  In other words if all lines are configured to synchronize, and the backup is set to HH replaces desktop, doing just that this backup drives?

  I don't know if I ask myself the question of the right way... I'm just not understand how it is different from that of the rest of the ducts, and when he "gets used."

  It must always be defined pocket computer replaces desktop, the only circumstance when you'd the other's hard you reset your device and everything restore on your device.

  Message relates to: Centro (Sprint)

• What is the difference between 'Product recovery Support' and 'recovery media "?

  Both of the above are options in my file of ThinkVantage. I asked Lenovo (Atlanta?) and uh... they did not either.

  .... And the option will give me the opportunity to make a Vista Ultimate clean install less bloatware?

  Thks

  J

  Product recovery media = Recovery CD inclusing OS, drivers and programs (to retrieve the default values)

  Recovery media = CD regular backup your system Safe

  If you are unsure, try them and see what are the components

• What is the cable of data recovery?

  With my flame came a wire called 'data '. What is the difference with a normal Micro USB cable? Is it connected differently?

  I noticed that when I connect to my flame using a standard Micro USB cable, then it behaves funny. I saw him restart spontaneously, and also saw him plug and unplug several times. With the cable of data recovery, connections appear to be stable, but I wonder why. The Keon has worked well with a standard Micro USB cable.

  Hi Fekle,

  I'm not sure what the difference is in the cable of data recovery. For me, when I use this cable to recharge, my camera flame has strangely, sometimes requires me to remove the battery before restarting the unit.

  I had written to T2M asking how to use the wire and this was their response:

  Please follow the instruction below to rescue the phone.
  

  Firstly, we send a Recovery Cable with RED label with Flame phone, which is placed outside of Flame package. Please make sure that you have it.
  

  Secondly, please download Emergency rescue tool from http://cds.w5v8t3u9.hwcdn.net/Flame%20Rescue%20Tool.zip, unzip it, run Flame.exe and follow the attached PPT instruction to start the rescue.
  

  -Ralph

• What is the Vista Home hp_ recovery disk

  My HP laptop with Vista Home, has a disk of 10 GB (e) called HP_Recovery, with 9.24 GB used space

  On the disc, he has a record of recovery, that when I hover over it tells me that it has been changed in September 2007.

  If I double click on it I thought that the folder is empty, but if I look in the properties I tells me that there are 4 files and folders 0.

  So, where's the 9.24 GB that contains the files and how are they used?

  Does somewone please explain it to me please

  Thank you

  Hello slingeraa,
  Welcome to the HP Forums.

  I see that you are looking for information on what the HP_Recovery drive is and what it is for. This document will provide you with this information: what is the recovery (D hard?.)

  I hope that answers the questions you had. Thanks for posting on the HP Forums.

• What is the size of your recovery Partition?

  Hi all

  I am running with active FileVault 10.9.5 (mid 2014 retina MacBook Pro 2.2 GHz, 16 GB RAM, stock Apple SSD). At one point, I had a 650 MB recovery Partition on my internal SSD (I'm sure it was a previous iteration of 10.9). At one point, he went to 1.03 GB. Was - it due to an update or maybe something wrong? So I would like to know what size your RP is if you run 10.9.5.

  Also, I have several Carbon Copy Cloner backup on external hard drives; We started as a SuperDuper! backup and it has a 1.30 GB RP (exactly 2 x the size of a RP 650; a coincidence?). Another also began as a backup of the SD was changed to a backup of the CCC and has a PR of 650 MB. Another was created from the beginning using the CCC and its creator RP; its size is 784,2 MB. So, I want to see if one is 'correct' or if it is normal to have different sizes of RP.

  To find the size of your RP, go to utilities > system information > material > SATA/SATA Express and look down where it says "Recovery HD."

  Any help is greatly appreciated.

  Thank you!

  3:

  Apple_Boot Recovery HD

  650.0 MB disk0s3

  It's the recovery partition on my system of El Capitan clean install.  I used 'diskutil list' for this information

• What is the best choice, factory recovery Vista, or upgrade to windows 7?

  Hi everyone, my hp Pavilion a610t/Vista premium, 2.2 G cpu, 3 G ram is begginning to get slow and my registry has been damaged (my cd player does not work because the driver does not not despite all troubleshooting, will not read SD card, task manager blocks and other minor problems that I could continue... etc...) I have 2 years from the end of my studies and need a reliable free trouble PC bu cannot afford to buy a new PC now. What would be the best solution? total factory using recovery disc/Vista OS restore or upgrade OS set to windows 7? I heard windows7 is allot more reliable and trouble free but do not know if my system would work well considering its specifications. Factory restore would give me a new start but eventually vista will act up and is no longer supported... Any advice would be welcome, I'm strictly amateur, and it would make by a Tech unless, its worth trying to fix my problems, but don't know where to start.

  Thank you, Alan

  Boulonman

  You are the very welcome, Alan.

• Is it possible to completely disable the backup Rescue and Recovery?

  
  
  

• I used the backup and restore of the backup C on pc. Then tried to open saved files with IE and started acting weird.

  zip files

  I used the backup and restore of the backup C on pc.  Then tried to open the files saved with IE.  IE went into free fall.  ???

  I have no idea what opened the backup files when you have double-clicked, or if you will not quote you took after doing this...  However, the official way to 'Browse' the content of the backup...

  You can view the contents of your backup by opening the wizard to restore files.

  1. Open backup and restore by clicking on the button start , clicking Control Panel, clicking system and Maintenance and then click Backup and restore.

  2. Do one of the following:

     • To view your files, click Restore my files.

     • To display files all the, click on restore files for all users. If you are prompted for an administrator password or a confirmation, type the password or provide confirmation.

  3. Do one of the following:

     • To browse the contents of the backup, click Browse for files or click Browse for folders.

       When you browse folders, you will not be able to see the files in a folder. To view individual files, use her browse for files option.

     • To search the contents of the backup, click search, type all or part of a file name, and then click search.

  If you back up to the top PC (VHD) integer then you mifght consider this trick:
  http://www.Petri.co.il/mounting-Vista-backups-using-Windows-complete-PC-Backup.htm

  According to the edition of Windows Vista that you have (and how useful, you will find the possibility to look at old versions of a given file and possibly restore), this could be useful to you:
  http://www.ShadowExplorer.com/
  (not a replacement of relief.)

  With regard to the rate of success vs. failure rate of backup - it is difficult to measure.  Indeed most of the people backs up incorrectly.  It's really * not * enough to set a backup and forget about it.  If you test ever that your backups work/glance to see if you are backing up the good thing - it's just not wise.  Although most people expect that it is essential that the backups were working properly (not a test, a real emergency) to be discovered.  Most individuals who report failures, unfortunately, fall into this category "when my aircraft crashed and I went to my backups - it turns out _ backup _ does not and never told me...» ».

  A question... If you manually create a ZIP file (not a backup) - can you still Explorer in it as a folder?

  To test... Create a folder on your desktop.  Copy some files into it - of different types.  I say COPY and not MOVE on the goal here - because you can just blow this folder and all that results from this folder later if it was all fair copies of things.

  Make a right click on this folder and choose "send to" and "compress (ZIP) file and give a name to the new 'folder '.  (It's really a file.)  On your desktop, you should have the original folder you created and copied some stuff in, and a new "folder" with the name you just gave.  If you open the 'new' folder - you should see the name of the folder that is still on the desktop and go to this folder, you should see the files.  You literally use Windows Vista to the 'discovery' inside a ZIP file as if it were a folder.

• RMAN restore: what is the DBID?

  Hello

  There were a few problems with plesk on our server and there is no way except the OS reload. Here is the log for each backup car of the day:

  XE Backup Journal

  Recovery Manager: release 11.2.0.2.0 - Production on Mon Oct 5 02:30:02 2015

  Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

  connected to target database: XE (DBID = 2713545907)

  RMAN >

  echo on

  RMAN > configure redundancy 2 retention policy;

  using the control file of the target instead of recovery catalog database

  RMAN old configuration settings:

  CONFIGURE REDUNDANCY 2 RETENTION STRATEGY;

  new RMAN configuration settings:

  CONFIGURE REDUNDANCY 2 RETENTION STRATEGY;

  new RMAN configuration settings are stored successfully

  RMAN > configure controlfile autobackup format clear device type disk;

  RMAN configuration settings are reset to the default value

  RMAN > configure controlfile autobackup on;

  RMAN old configuration settings:

  CONFIGURE CONTROLFILE AUTOBACKUP

  new RMAN configuration settings:

  CONFIGURE CONTROLFILE AUTOBACKUP ON;

  new RMAN configuration settings are stored successfully

  RMAN > sql "create pfile =" / u01/app / . Oracle / Product/11.2.0/XE/DBS/ " spfile2init.ora" of spfile ";

  sql statement: create pfile = "/ u01/app / Oracle / Product/11.2.0/XE/DBS/ spfile2init.ora "of spfile

  RMAN > backup backupset device type disk database;

  From backup October 5, 15

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: SID = 114 type device = DISK

  channel ORA_DISK_1: from full data file backup set

  channel ORA_DISK_1: specifying datafile (s) in backup set

  file number of the input data file = 00001 = / var/oradata/XE/system name. DBF

  file number of the input data file = 00002 name = / var/oradata/XE/sysaux. DBF

  file number of the input data file = 00003 name = / var/oradata/XE/undotbs1. DBF

  Enter a number of file datafile = name=/var/oradata/XE/users.dbf 00004

  channel ORA_DISK_1: starting total, 1-5 October 15

  channel ORA_DISK_1: finished piece 1 at 5 October 15

  piece handle = / var/oracle_fra/XE / backupset/2015_10_05/o1_mf_ nnndf_TAG20151005T023003_ c149qwxk_.BKP tag = TAG20151005T023003 comment = NONE

  Channel ORA_DISK_1: backup complete set, time: 00:01:56

  Finish backup October 5, 15

  From control file and SPFILE Autobackup 5 October 15

  piece handle = / var/oracle_fra/XE / backup automatic/2015_10_05/o1_mf_s_ 892261919_c149vhn0_.BKP comment = NONE

  File control finished and Autobackup SPFILE to 5 October 15

  RMAN > configure controlfile autobackup.

  RMAN old configuration settings:

  CONFIGURE CONTROLFILE AUTOBACKUP ON;

  new RMAN configuration settings:

  CONFIGURE CONTROLFILE AUTOBACKUP

  new RMAN configuration settings are stored successfully

  RMAN > delete noprompt obsolete;

  RMAN retention policy apply to the order

  RMAN retention policy is set to 2 redundancy

  using channel ORA_DISK_1

  Radiation of the obsolete following backups and copies:

  Making key time filename/handle type

  -------------------- ------ ------------------ --------------------

  Backup Define 1265 3 October 15

  Backup piece 1265 3 October 15/var/oracle_fra/XE/backupset /2015_10_03/o1_mf_nnndf_TAG20151003T023003_c0z0zwm9_. BKP

  Log archiving 669 3 October 15/var/oracle_fra/XE/archivelog / 2015_10_03/o1_mf_1_730_ c0z13f0x_.arc

  Backup Define 1266 3 October 15

  Backup piece 1266 3 October 15/var/oracle_fra/XE/autobackup /2015_10_03/o1_mf_s_892089109_c0z1364t_.bkp

  deleted backup room

  backup piece handle = / var/oracle_fra/XE / backupset/2015_10_03/o1_mf_ nnndf_TAG20151003T023003_ c0z0zwm9_.BKP RECID = 1265 STAMP = 892089004

  Delete archived log

  name = archived log file / var/oracle_fra/XE / ARCHIVELOG/2015_10_03/o1_mf_1_ 730_c0z13f0x_.arc RECID = 669 STAMP = 892089118

  deleted backup room

  backup piece handle = / var/oracle_fra/XE / backup automatic/2015_10_03/o1_mf_s_ 892089109_c0z1364t_.BKP RECID = 1266 STAMP = 892089110

  3 items deleted

  RMAN >

  Complete recovery manager.

  Recovery Manager: release 11.2.0.2.0 - Production on Mon Oct 5 02:32:04 2015

  Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.

  connected to target database: XE (DBID = 2713545907)

  RMAN >

  using the control file of the target instead of recovery catalog database

  SQL statement: alter system archive log current

  RMAN >

  Complete recovery manager.

  The data files and RMAN backup files resides on the other HDD that are:

  / var/oradata/XE

  / var/oracle_fra

  I also copied the following files:

  init.ora

  spfile2init.ora

  spfileXE.ora

  Now the OS is reloaded, and I installed oracle from scratch:

  SQL > SELECT * FROM v version $;

  BANNER

  --------------------------------------------------------------------------------

  Oracle Database 11 g Express Edition Release 11.2.0.2.0 - 64 bit Production

  PL/SQL Release 11.2.0.2.0 - Production

  CORE Production 11.2.0.2.0

  AMT for Linux: Version 11.2.0.2.0 - production

  ===================================

  ] # cat/etc/centos-release

  CentOS release 6.7 (Final)

  The following folders/files are on my slave drive:

  oradata/disk1 /.

  / Disk1/oradata/XE

  /Disk1/oradata/XE/control.dbf

  /Disk1/oradata/XE/redo10_01.dbf

  /Disk1/oradata/XE/redo11.dbf

  /Disk1/oradata/XE/redo12.dbf

  /Disk1/oradata/XE/redo13.dbf

  /Disk1/oradata/XE/redo14.dbf

  /Disk1/oradata/XE/redo15.dbf

  /Disk1/oradata/XE/SYSAUX.dbf

  /Disk1/oradata/XE/system.dbf

  /Disk1/oradata/XE/temp.dbf

  /Disk1/oradata/XE/undotbs1.dbf

  /Disk1/oradata/XE/users.dbf

  oracle_fra/disk1 /.

  / Disk1/oracle_fra/XE

  / Disk1/oracle_fra/XE/ARCHIVELOG

  / Disk1/oracle_fra/XE/Autobackup

  / Disk1/oracle_fra/XE/backupset

  / Disk1/oracle_fra/XE/onlinelog

  / Disk1/oracle_fra/XE/ARCHIVELOG/2015_09_29

  / Disk1/oracle_fra/XE/ARCHIVELOG/2015_09_30

  / Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_01

  / Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_02

  / Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_03

  / Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_04

  / Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_05

  / Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_06

  /Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_04/o1_mf_1_731_c11ognk8_.arc

  /Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_05/o1_mf_1_732_c149vo3c_.arc

  /Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_05/o1_mf_1_733_c15dshcn_.arc

  /Disk1/oracle_fra/XE/ARCHIVELOG/2015_10_06/o1_mf_1_734_c18sw1q9_.arc

  / Disk1/oracle_fra/XE/Autobackup/2015_09_29

  / Disk1/oracle_fra/XE/Autobackup/2015_09_30

  / Disk1/oracle_fra/XE/Autobackup/2015_10_01

  / Disk1/oracle_fra/XE/Autobackup/2015_10_02

  / Disk1/oracle_fra/XE/Autobackup/2015_10_03

  / Disk1/oracle_fra/XE/Autobackup/2015_10_04

  / Disk1/oracle_fra/XE/Autobackup/2015_10_05

  /Disk1/oracle_fra/XE/autobackup/2015_10_04/o1_mf_s_892175488_c11ogk7m_.BKP

  /Disk1/oracle_fra/XE/autobackup/2015_10_05/o1_mf_s_892261919_c149vhn0_.BKP

  / Disk1/oracle_fra/XE/backupset/2015_09_29

  / Disk1/oracle_fra/XE/backupset/2015_09_30

  / Disk1/oracle_fra/XE/backupset/2015_10_01

  / Disk1/oracle_fra/XE/backupset/2015_10_02

  / Disk1/oracle_fra/XE/backupset/2015_10_03

  / Disk1/oracle_fra/XE/backupset/2015_10_04

  / Disk1/oracle_fra/XE/backupset/2015_10_05

  /Disk1/oracle_fra/XE/backupset/2015_10_04/o1_mf_nnndf_TAG20151004T023003_c11ocwg1_.BKP

  /Disk1/oracle_fra/XE/backupset/2015_10_05/o1_mf_nnndf_TAG20151005T023003_c149qwxk_.BKP

  /Disk1/oracle_fra/XE/onlinelog/o1_mf_1_9d4vrb2o_.log

  /Disk1/oracle_fra/XE/onlinelog/o1_mf_2_9d4vrcn4_.log

  /Disk1/oracle_fra/XE/onlinelog/o1_mf_3_9d4vrfbh_.log

  /Disk1/oracle_fra/XE/onlinelog/o1_mf_4_9d4vrgt3_.log

  /Disk1/oracle_fra/XE/onlinelog/o1_mf_6_9d4vr88o_.log

  Now I want to restore the last backup of the database:

  I googled and found this article: How do to restore database Oracle using RMAN (with examples) but do not know what is:

  RMAN > SET DBID 12345;

  Question-1: Which means the VALUE XE 1521 in my case?

  Question-2: Lbooking for a restore script

  
  

  It will be the first time in my career to restore the database

  Thank you in anticipation

  I guess that the following be useful: Oracle Database 11g: example of disaster recovery. When you restore a database from scratch, you need to know and define the DBID to identify the files required for the restoration, which must also match your target database, which is the database or the instance that you want to restore.

• ORA-19599: block number 45289 is corrupt in the backup piece

  OS: RHEL 5.7 64bits

  Database: 11.1.0.7

  Hi all

  I have problems to restore RMAN backup on test computer. The restore command is sick of following error message:

  ORA-19599: block number 45289 is corrupted in the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927509_1 item

  I already checked the piece back on prod and it seems OK:

  RMAN > validate backupset 3840;

  From post on 27 February 15

  using channel ORA_DISK_1

  using the ORA_DISK_2 channel

  channel ORA_DISK_1: starting from the validation of the data file backup set

  channel ORA_DISK_1: reading of the backup/oradata/ERP/RMAN_BACKUP/RMAN_ERP_20150227_15927509_1 element

  channel ORA_DISK_1: piece handle = / oradata/ERP/RMAN_BACKUP/RMAN_ERP_20150227_15927509_1 tag = TAG20150227T040007

  channel ORA_DISK_1: restored the backup part 1

  channel ORA_DISK_1: validation complete, duration: 00:02:45

  Finished post on 27 February 15

  Restore validate command also fails on the test machine:

  RMAN > restore database validation verification logic;

  From restoration to 27 February 15

  using the control file of the target instead of recovery catalog database

  allocated channel: ORA_DISK_1

  channel ORA_DISK_1: SID = 779 type device = DISK

  allocated channel: ORA_DISK_2

  channel ORA_DISK_2: SID = 778 type device = DISK

  channel ORA_DISK_1: sweeping datafile copy /oracle/DEV/db/apps_st/data/a_ref03.dbf

  channel ORA_DISK_2: from the validation of the data file backup set

  channel ORA_DISK_2: reading of the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927510_1 element

  channel ORA_DISK_1: sweeping datafile copy /oracle/DEV/db/apps_st/data/a_txn_data05.dbf

  channel ORA_DISK_2: ORA-19870: error when restoring backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927510_1 piece

  ORA-19599: block number 233296 is corrupted in the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927510_1 item

  channel ORA_DISK_2: scanning datafile copy /oracle/DEV/db/apps_st/data/a_int01.dbf

  channel ORA_DISK_1: starting from the validation of the data file backup set

  channel ORA_DISK_1: reading of the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927509_1 element

  channel ORA_DISK_1: ORA-19870: error when restoring backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927509_1 piece

  ORA-19599: block number 45289 is corrupted in the backup/oracle/clone/DEV/rman/RMAN_ERP_20150227_15927509_1 item

  switch to the previous backup

  My confusion is why validate backupset succeeds the prod and the same backupset presents corruption block during test.

  Kind regards

  Vinod

  Maybe the backuppiece has been altered in the transfer to the DEV machine?  Run a checksum on the backuppiece on both machines and compare.

  Hemant K Collette

• query to get the required files for recovery...

  I'm on 11.2.0.1 catalog trgt db and restoration and I wanted to find can query outwhat I ran to get the backup files that I need...
  
  Say so I want to restore my database to 11-Jan-2012 14:00 hours...
  So what query do I need to run to find out what are the backup files I need? The reason for this is... backup are on tape and tape drives are send off site after the backup is done... so we have to find these are the necessary backup for restoring file and lie on this band... until they ask to get this info?
  
  query should return the necessary backup files (say backup of level 0, level 1 backup peiece, archive etc etc log backup items)...

  user12857022 wrote:
  I'm on 11.2.0.1 catalog trgt db and restoration and I wanted to find can query outwhat I ran to get the backup files that I need...

  Say so I want to restore my database to 11-Jan-2012 14:00 hours...
  So what query do I need to run to find out what are the backup files I need? The reason for this is... backup are on tape and tape drives are send off site after the backup is done... so we have to find these are the necessary backup for restoring file and lie on this band... until they ask to get this info?

  query should return the necessary backup files (say backup of level 0, level 1 backup peiece, archive etc etc log backup items)...

  Of RMAN

  run
  {
  until ;
  Overview of database restore;
  }

• That includes the support of product recovery cd?

  Hello

  I just bought a new Toshiba Satellite U400/03 s today and I was wondering what includes the cd of "product recovery media"? Is this the same as the windows recovery cd + all re-installers driver? Oh, and since my laptop has installed windows vista professional, but the recovery media allows for me to downgrade to windows XP pro, the cd of "product recovery media" would include both windows (vista AND xp)?

  Thank you!

  Hello

  I assume you have the Australian cell phone model. I don't know with certainty how notebooks are configured here, but in General, all new laptops are delivered without recovery media.
  You must create a recovery using 'Toshiba Recovery Disc Creator' media. It's a small tool preinstalled on your laptop and use this tool, you can create recovery DVDs Vista.

  This DVD you can use for the installation of Vista more far. You can use it so often desired.
  As far as I know, some laptop models are also supported for Windows XP Home edition and some laptops come with separate recovery WXP media. So you can use Vista (factory settings) and you can also install additional Windows XP Home edition, using this recovery media.

  Before anything please create recovery DVDs Vista.
  Sorry, but I can't say with certainty what is in this DVD.
  Can you please send what is written on it?

• What is the recommended size of repository to store saves the backups of ACS SNS-3415-K9, v5.4

  Hello guys, we need your advice :),

  do you know what is the recommended size of repository to store backups of logs of ACS SNS-3415-K9 (v5.4.0.46.0a software)?

  We intend to create an FTP server to record a monthly full backup and an incremental backup daily.

  We would like to consider the worst case in which ACS View Database is complete and a full backup is required and daily incremental backups.

  In the second period, we would appreciate really any advice on how to maintain, say, only the last 2 full backups and all the related incremental backups in the FTP server, is there a way to automate the removal of the oldest backup when a new backup is generated?

  Thanks in advance!

  Hi Rodrigo,

  Honestly, there is not a suggested size of space available to FTP/SFTP server used as the size of your backups of data base of progressive and complete view depend on 100% of the amount of newspapers ACS server receives every day, so what I would suggest to take a look at a couple of incremental for 2 consecutive days and would help you to determine what would be the amount that you need for a period of 30 days (one month).

  And associated with your concern if the ACS would supports the option to manually maintain the last 2 full backups view, unfortunately, it is not available as an option.

• My Clickfree automatic backup drive has stopped working, with my iMac, what is the best replacement to use with Time machine

  My Clickfree automatic backup drive I had for many years stopped working with my iMac, what is the best replacement to use with Time Machine.

  I can't even reformat the drive to try to start over, then think its time I invested in a high today but don't know where start looking so any advise would be a great help.

  Thank you guys

  A lot of users on these forums recommend OWC (www.macsales.com) Mercury Elite Pro series JEP due to their durability, affordability and quality of construction. I have about 6 of them connected to my iMac and have never had a speaker to fail. When a hard drive fails, substitute is a 5-minute process to re - use the box. To help you get started, you can find the line to: https://eshop.macsales.com/shop/firewire/1394/USB/EliteAL/eSATA_FW800_FW400_USB

  You can find them in various ways and with a variety of configurations of connection so you can find the one that best fits your needs.

  Good luck!