External firewire enclosure.  Which one?

Hi,
My old G4 tower had two extra hard drives, and I'd like to put both of them in ONE HD enclosure so I can access them from my iMac. Does such an enclosure exist to support two separate drives? I'd like to avoid getting a separate case for each drive.
Thanks;
J.
iMac 24" 2.33 CD2   Mac OS X (10.4.7)   2GB RAM

Some extra information:
RAID 0: Also called "stripe" mode. Operations on the array will be splitted on both drive's; for example, a large write will be split up as 32 kB to disk 1, 32 kB to disk 2, 32 kB to disk 1, then 32 kB to disk 2, and so on. The read and write performance will increase, because read's and write's are done in parallel on the devices. This is usually the main reason for running RAID-0. Your read and write performance will be about twice as fast. Of Course, the disks must be of equal size. If one disk is larger than another, your RAID device will be the size of the smallest disk
RAID 1: This mode maintains an exact mirror of the information from one disk on the other disk. Of Course, the disks must be of equal size. If one disk is larger than another, your RAID device will be the size of the smallest disk. Write performance is often the same or worse than on a single device, because identical copies of the data written must be sent to every disk in the array. But your data is really save, if one disk does fail, all the information is still on the other one.
If you are not interested in a RAID set-up, you can ofcours buy a enclosure without the RAID function's.
Hopefully this is helpfull or solved your problem. (please see the button's above this message)

Similar Messages

  • External control unit - which one works best?

    i would like to buy an external control unit. which one works best with the final cut studio apps? as far as i know, there are three competitors, being:
    TASCAM 1802, MACKIE CONTROL and Digidesign...
    I would like to use the unit mainly for audio mixing and Transport functions. Maybe use some function keys for shortcuts... if the unit can be used also in Sound track pro it would not hurt But my major work is in FCP
    thanks for your input!

    I'd buy the Tascam 1802 as my control surface. Actually I'm saving my pennies to get one.
    I have a Mackie Onyx 1640 with the Firewire card and I love it to pieces as a field mixer. But I can't get it to work well with my apps as a control surface. Maybe I should check and see if Mackie has improved the software.
    But I'd go with the Tascam for FCP control surface use. You might get away with one of their smaller models if you don't need that many faders.
    Save some money that way, maybe. Leave you more to send to Apple, MOTU, DigiDesign, Bias, and Waves for software upgrades. I mean, we all understand that those folks need our money way more than we do, right? Heh, heh, heh...
    Good luck in your search.

  • How large a HD can go in my external firewire enclosure?

    I realize this is not actually a Mac product, but rather a Made for Mac product, but here goes anyway. I have an older Fantom Drives external firewire drive that I bought for G4 which moved to my G5. It is about 120gb. I am curious how large a drive and what type I can put in this enclosure. Here is the info from system monitor, if that helps:
    OXFORD IDE Device:
    Manufacturer: Oxford Semiconductor Ltd.
    Model: 0x1
    GUID: 0x30E034E002102E
    Maximum Speed: Up to 400 Mb/sec
    Connection Speed: Up to 400 Mb/sec
    Sub-units:
    OXFORD IDE Device Unit:
    Unit Software Version: 0x10483
    Unit Spec ID: 0x609E
    Firmware Revision: 0x137
    Product Revision Level:
    Sub-units:
    OXFORD IDE Device SBP-LUN:
    Capacity: 115.04 GB
    Removable Media: Yes
    BSD Name: disk4
    OS9 Drivers: No
    S.M.A.R.T. status: Not Supported
    Volumes:
    Firewire HD:
    Capacity: 114.91 GB
    Available: 80.19 GB
    Writable: Yes
    File System: Journaled HFS+
    BSD Name: disk4s3
    Mount Point: /Volumes/Firewire HD

    You can probably google Fantom + Oxford but... my guess is it may not have the firewire bridge support for 48-bit LBA to use large drives.
    And it most likely needs a firmware update if possible. When Tiger came out many needed such updates.
    Instead, I'd just get a new Oxford 934 FW case from OWC with FW800/400 USB2.
    Insures less trouble and with work with current OS.

  • Hacking a LaCie ATA External Firewire Enclosure

    Recently hacked my FireWire LaCie external To make it a universal FireWire  plug-n'-play ATA adapter for just about any ATA 3.5 drive. Total cost was $0.00!! It works like a dream and is far faster than any ATA USB external, since it's Firewire.
    A useful repurpose for an otherwise tired LaCie external. Thought others might like to know it can be done easily. This is so handy—Especially if the drive in your LaCie is full or needs to be replaced and LaCie is out of warranty. It's very simple. All need is some extra time, and a bunch of old drives laying around collecting dust. I'm now able to store all my native iMovie and iDVD files on the old ATA drives. :-)
    The Story:
    I had an old LaCie 120 GB external that housed an ATA Western Digital HD. After almost filling up the drive with back-up files, (a few years later), I noticed the HD was faltering. It was having trouble writing files to other drives and the like. I decided it was time to tear the external housing apart and maybe put a new drive in it. First I copied off all my important data to another drive.
    After getting it apart I was surprised to see that the drive inside was nothing but a Western Digital ATA 120 GB drive. I initially thought it would be a LaCie brand HD.
    It was connected with a Molex power plug and a short 40 pin data ribbon. I lengthened both so I could quickly attach drives on the outside of the case by simply plugging them in. Ie.- (Plug-N-Play). Just make sure the jumpers on the drives you want to plug in are set to "Master" and your good to go.
    The How:
    I added length to the Molex power wires by first removing the stock LaCie Molex power plug from the 4 power wires, then soldered on 4 more inches of wire that were already coming out of a used Molex plug. Thus, lengthening the power wires by 4 inches. I used shrink tubing on all the soldered connections then covered that with electrical tape. I added a zip tie to the frame-work on the inside of the LaCie case and anchored the power wires to it. That way, the power wires would not be accidentally pulled out of the circuit board when attaching and reattaching drives. I replaced the LaCie (short) drive data ribbon with a much longer drive data ribbon scabbed out of an old PC. Now I could attach any ATA drive on the outside of the LaCie case, without opening it up. I did have to make some cut-outs in the aluminum LaCie case to accommodate the exiting power wires and data cable to be able to snap the LaCie case back together. It's not glamourous, but it works great for attaching and removing any ATA HD quickly.
    Cheers! :-)

    BDAqua,
    Thanks. And thanks for that tip. Your right that some of the enclosures are limited to the drive size that came with the enclosure. Luckily my enclosure was made for at least 120GB.   Most of the old HDs I have laying around are smaller than 120GB. Not sure if the LaCie enclosure would have a limit on it or not.

  • Extreme and external hard drives - which one

    Hi I am looking to attach a external hard drive to the airport extreme but I am not sure of the spec of hard drive that I would need or can you just hook up any type sata, ide,etc. there is no info in the setup guide.
    Also I looked at a wireless hard drive does anyone have any idea's as to the best one to get ?
    I have put a bid in on ebay for a dlink usb wireless router that CNET said you can use to link in a external hard dive so because I have a spare 70GB IDE hard drive and and enclosure for it from a previous project I was going to hook it all up and try and use what I had but I have no idea whether it will work. A wireless network enclosure is about £150 and then you need a hard drive to go in it so it would be in excess of £200.
    Any thoughts would be appreciated.
    Regards

    As long as it offers USB you are ok - the kind of hard drive(s) inside is of secondary importance. I would however refrain from WLAN HDDs as you just add another element that can go wrong. USB is a hard wire and is robust. So if you can place your external HDD next to your AE, I would go for that. Works for me fine.
    Martin

  • Firewire cable - which one

    I feel like an idiot posting a simple question but I cant work out what firewire cable to get to plug in an external hard drive. I have now bought two cables - the hard drive is a 6 pin but I cant work out which kind to get to plug into the mac socket. I have an imac intel 21.5 inch bought late 2009.
    I only discovered this problem when the external hard drive is not being recognised by the mac via USB --- my other external hard drives work fine via the same usb port
    Any help well appreciated

    Hello morganfish
    Welcome to Apple Discussions
    If your External Hd's are FireWire 400 then you could use a 400 to 800 adapter. http://eshop.macsales.com/item/Newer%20Technology/FIR1369AD/
    Or if we knew exactly what external HD(s) you had, then we might be able to suggest the correct FireWire cable to go straight from you External HD to your iMac's FireWire 800 port?
    But it sounds like you need a 6 to 9 pin FireWire cable.
    http://eshop.macsales.com/item/Newer%20Technology/1394B96036/
    Dennis

  • Sql Loader Vs External table? Which one is preffered?

    Hello guru,
    We trying to load the data into about 160 tables. Here are the following things we are doing currently,
    1. We get the flat file in .txt format
    2. We are writing the control file for each flat file for thier respective tables
    3.And we are using sql loader command to load this data into the table.
    I was wondering if this process is cumbersome, and i m not sure if external table could be simple in loading the tables compared to what we are doing ?And i have not used external tables, so wanted to know which on eis better ? So any idea is greatly appriciated !
    FYI.. Version :- Oracle 11g
    Thank you so much!

    Thanks for you reply justin !
    I found the below example for loading the data into external table...
    CREATE OR REPLACE DIRECTORY dat_dir AS 'C:\Oradata\Data';
    CREATE OR REPLACE DIRECTORY log_dir AS 'C:\Oradata\Log';
    CREATE OR REPLACE DIRECTORY bad_dir AS 'C:\Oradata\Bad';
    GRANT READ ON DIRECTORY dat_dir TO scott;
    GRANT WRITE ON DIRECTORY log_dir TO scott;
    GRANT WRITE ON DIRECTORY bad_dir TO scott;
    CREATE TABLE revext (person      VARCHAR2(20),
                         rev_jan     NUMBER(4),
                         rev_feb     NUMBER(4),
                         rev_mar     NUMBER(4),
                         rev_apr     NUMBER(4),
                         rev_mai     NUMBER(4),
                         rev_jun     NUMBER(4),
                         rev_jul     NUMBER(4),
                         rev_aug     NUMBER(4),
                         rev_sep     NUMBER(4),
                         rev_oct     NUMBER(4),
                         rev_nov     NUMBER(4),
                         rev_dez     NUMBER(4))
    ORGANIZATION EXTERNAL
       TYPE ORACLE_LOADER
       DEFAULT DIRECTORY dat_dir
       ACCESS PARAMETERS
         records delimited by newline
         badfile bad_dir:'revext%a_%p.bad'
         logfile log_dir:'revext%a_%p.log'
         fields terminated by ','
         missing field values are null
         ( person,
           rev_jan,
           rev_feb,
           rev_mar,
           rev_apr,
           rev_mai,
           rev_jun,
           rev_jul,
           rev_aug,
           rev_sep,
           rev_oct,
           rev_nov,
           rev_dez
       LOCATION ('revext.dat')
    PARALLEL 4
    REJECT LIMIT UNLIMITED;
    CREATE TABLE revenue (
        person       VARCHAR2(20),
        month        VARCHAR2(3),
        revenue      NUMBER,
        CONSTRAINT revenue_pk PRIMARY KEY (person,month));
    INSERT INTO revenue (person,month,revenue)
       SELECT person,'Jan',rev_jan
       FROM revext--but currently we are using sql loader, our data looks like this
      1119Smith      01/01/1982AXYZ corporation  xyz corp
      1111collen      01/01/1990AABC corporation  abc corp
         and control file is like this
    INTO TABLE "XYZ_tbl"
       ID                     POSITION(01:05)        CHAR                  "DECODE(RTRIM(:ID), NULL, 'NA', :ID)"       ,
       Name                POSITION(06:15)        CHAR                  "DECODE(RTRIM(:NAME), NULL, 'NA', :Name)"   ,
       Act_dt              POSITION(16:25)        DATE                  "MM/DD/YYYY" NULLIF ACT_DT=BLANKS
    My question is, can i use the options like NULLIF/ DECODE or changing datatypes when loading or functions like REPLACE / TO_DATE in External tables ? Any idea? Any example code or SQL will great
    Thank you so much!

  • User gets locked by an external system but which one?

    Hi,
    In an abap system, we have changed the password of our administration user. Afterwards, this user gets locked every 5 minutes, obviously because the user and old password has been used to set up communication from another system to the abap system. An RFC connection for instance or whatever. Sure it is possible to check all the systems you can think of to see if the user has been used for such a purpose. But how can you see in the system itself where the call comes from that locks it? I have tried the gateway tracefile but without success. Any suggestions?
    Regards,
    GK

    Hello,
    I would try transaction STAD.
    There you should find entries of type RFC with your user.
    If you double-click on the line, you get the details. Click on the RFC button.
                                  as Client             as Server
    No. of targets                   0                     1
    Click on the highlighted 1 under "as server".
    You should get the needed info : the remote destination
    Target         TEST_DEV
    User ID        TESTOC
    RFC Caller     OCHRETIE
    Local  destin. bt1suk17v1_DEV_02                IP address xx.xx.xx.xx
    Remote destin. bt1suk16v1_DXI_68                IP address yy.yy.yy.yy
    Hope this helps
    Olivier

  • Which HDD connection is faster -- Internal ATA or External Firewire?

    I want to set up a HDD as a scratch drive for Photoshop. Which connection would be faster -- hooking it up to my internal ATA 100 cable or an external firewire enclosure? I do not have a drive presently hooked up to my ATA 100 cable since I'm running my boot drive off a SATA controller card, so there would NOT be two drives on the ATA 100, just the scratch drive. Thanks.

    The speed ratings of drives above ATA-66 is mostly specsmanship.
    A 10,000 RPM drive can only source data off the platters at about 50 MBytes/sec. So an ATA-133 drive has a tremendous pipe, but very seldom can fill that pipe with continuous data. The processor can write to the drive cache that fast, but at some point the cache will fill up and you will still have to wait for the discs to spin around so that the data can be written into the right block.
    The data density per square inch on a 7200 RPM drive is about the same as the 10,000 RPM drives, but you have to wait for it to move under the read/write head, and the platters are spinning slower, so the transfer rates are lower.
    If transfer rates were the most important factor, we would all be using Fiber Channel SCSI drives with transfer rates in the GigaBytes/second. Oh, and one meter cables cost over US$30 EACH.

  • Need User Name and Password for External Firewire new hard drive

    In the past, I've worked with two 250 GB PATA drives in my G4, one inside and one in an external Firewire enclosure. I used Carbon Copy Cloner to copy and maintain all system and user files from the internal drive to the external drive. The external drive would boot just fine. These two drives were both partitioned with 74.5 and 158.4 GB partitions with the system files on the smaller.
    The internal drive died so I bought a new 500GB drive and installed it in the external enclosure and moved the former external drive inside the G4.
    I again used CCC to copy the system and user files to the new 500GB drive.However, I only gave it one 465.8GB partition. I cannot make the external drive complete the boot process. It stops and demands a user name and a password. I've not been able to supply ones which work.
    I have remembered and entered the user name and password which were installed when I partitioned the 250 GB drives years ago. The window thinks a few seconds and then shakes back and forth and then clears the data entry boxes so that I can try again.
    I do have an Install DVD for Tiger 10.4 (bought from Apple) and have been able to use that to go back and change the root or administrator password and the User password on the computer. That has not solved my problem.
    I have read about 25 pages of this forum and not seen any posts that referred to password problems with only the external hard drive. But I've seen some very knowledgeable answers to other people's posts.
    Please help.
    Gil

    Generally, when Mac OS X is asking you for a username and password, it is when you are doing something that requires an Administrator password, such as repairing a hard drive's Directory or making major changes to quasi-System things.
    So Carbon Copy Cloner and Disk Utility are likely asking for an Administrator user_id and password. It will not take a simple carriage return as an answer -- the operation will not complete without that Admin authorization.
    If you are among the \[estimated five or six] people who actually read the manual and followed the advice to use a non-admin password for your day-to-day computer work, you may not even remember the Admin username and password.
    If you have an Installer CD, you can boot to the Installer CD and choose Reset Password off the Installer menu (10.3 and earlier) or the Utilities menu (10.4 and later). There is also an Installer-compatible version of Disk Utility there, and while booted from the CD is an ideal Time to Repair your main Hard Drive, while it is not being used for booting the System.

  • Need Advice On Using A New Firewire Enclosure

    Just bought an external Firewire enclosure. I'll install either a Maxtor 250G HD or the original/shipped Quantum 20G in the enclosure.
    I'd appreciate advice on when and when not to turn on or unplug the enclosure, OS installation, etc, etc. Will it show in Startup Disk Prefs and just boot to it when chosen? The Quantum has been my backup HD but it's corrupted at the moment and needs to be erased. It's a toss-up on which will be ext and which will be int. I'd like to utilize the capacity of the Maxtor, but I'm loath to use the Quantum as my 'main' OS drive. Thoughts?
    And just some basic tips on using external enclosures would be most welcome!

    do not ever hot swap firewire devices, ever. basically, put your harddrive in the enclosure, make the connections and then turn it on. use disk utility to format the drive, no matter what it is, even if it's fresh outta the box and claims to already be mac formatted. do that and it should mount automatically. when you want to turn off the drive, always always always eject it from the desktop (command-E) and then you can safely turn it off and unplug. when you want to remount it, plug it in if unplugged, turn on the enclosure and it'll mount on the desktop automatically.
    i buy bare drives and stick them enclosures from OWC and i always follow these procedures and they've never let me down with so much as a hiccup. good luck.
    zeb

  • Finder hangs | external firewire hdd

    hi list!
    unfortunately my finder.app gets completely wasted very often, which is quite annoying. i think this has got sth to do with my external firewire enclosure (raidsonic icybox 351 usb2/fw combo, prolific chipset), which sometimes just stops working (eg. after hibernate). and only if i disconnect the drive or switch it off completely, finder (and all the other finder-like dialogs) reincarnates. i feel the problem came up more often after a firmware update (mac mini or smc), but i could be wrong. no probs with this drive with lin and win so far...
    how can i unmount it more safely?
    using umount /dev/my_ieee1394disc ?
    any ideas, suggestions, similar experiences?
    Mac mini Dual [email protected], 1GB RAM   Mac OS X (10.4.6)  

    If you recently moved to Snow Leopard you might look for new firmware for your external drive. I would also get DiskWarrior and run that on the external and consider programs like Drive Genius. You might also back it up and wipe it and restore the data. After that I'd consider looking at a new external.
    Sleeping drives that take time to spin up after waking....I'd like to learn how to stop that myself. Be sure the Energy Saver in System Preferences is set to not put drives to sleep when possible. Even then my drives will go to sleep and I have up to 6 external added at times and they take quite a while to all spin up. I've never found a way to prevent that.
    BTW...external USB drives on a MacPro? Really? Even for backup....

  • Dongle via an external firewire HD

    A little OT... and I admit I didn't really search before posting this ;-p
    MacBook Pro has only 2 USBs. Logic takes one precious USB for the dongle and connecting a MicroKontrol leaves no USB. I got a Lacie external firewire HD to store Jampack loops, then, this came to me..
    What if I had an external firewire HD which has a USB port? Can I connect the dongle there and thus free the precious USB port of the notebook? Is there such external HD which can use both firewire and USB and works also as a hub?
    If there's such thing, I should have spent more for one instead of jumping on the simple firewire only inexpensive drive...

    I just got a 7 port USB hub, the size of a deck of cards. 5
    ports around the sides and 2 on top. My dongle proudly
    sits in one of the top slots as if king. For about 50 bucks,
    I now have more USB ports than I need, for now.

  • Is it possible to boot a G4 (pci graphics) from an external firewire drive?

    I have a Lacie 250 gig bootable external firewire drive which is recognized on my Power PC G4 400 but I cannot get it to boot from this drive. The procedure works fine on my ibook... I looked into a possible firmware update but the apple site says no update is necessary for the G4 400/pci graphics...
    Any suggestions?

    There sure are some radically contradictory posts here! (This isn't typical, at least in this section of the Discussions, RMx2.)
    Can anyone who has posted here (or might join in here) actually boot from a hard drive connected via USB? I just tested this with OS X and I can't. For some time now, the Discussions have been riddled with posts, whether 100% accurate or inaccurate, that Macs don't boot from USB drives, despite the seemingly conflicting info in the article that Don kindly referenced. (John Huber: Don't eat your words just yet, John!)
    Here's my personal experience, for what it's worth... I have a rev.2 B&W G3 which recognizes, reads, and writes to drives via USB, but refuses to boot from them (I tested with OS X 10.3 and 10.4). I also have a QS 2002 G4 that yields the same results. The QS G4 will, however, boot from these drives via FW. I used a WiebeTech ComboDock for testing this with both USB and FW. I tested with two different hard drives, both of which are known to have stable, working versions of OS X on them.
    My G3 running OS X 10.3.9 sees the USB-connected drives in the Startup Disk Preference Pane, but when I click to Restart after selecting the USB system folder there, I get a beachball (haven't seen that in awhile...) and have to Force Quit System Preferences. Console tells me that that it could not get open firmware information or set open firmware information, and that it can't touch or set System/Library/CoreServices/BootX, returning Error 1 running bless.
    On the QS running Tiger, the USB OSs don't even appear in the Startup Disk Pane of Sys Prefs. I can see the USB drive(s) using the Startup Manager, but selecting them and restarting results in a hung startup to a spinning cog with a prohibitory sign on the screen...
    I haven't tried playing around with open firmware NVRAM settings (and don't intend to, except perhaps for trying an NVRAM reset), nor have I attempted to boot to OS 9, reset the startup disk there, and attempt the boot again to the USB device in OS X and in OS 9, which I may try later on when I have a bit of time...
    Gary
    Message was edited by: Majordadusma

  • How Do You Verify an External Firewire Drive?

    Hi. How do you use Disk Utility or the Terminal to verify the condition of an external firewire drive (which I use as Time Machine) that is not Time Capsule? Is there a program for it on Boot Camp Windows? Thank you in advance.
    Gbu

    Open disk utility and click on the drive the click verify.

Maybe you are looking for

  • Right Align the Currency values in ALV report

    Hi Friends, I have developed a report and displayed the output using the ALV. I have columns for currency values in the output table. The fields for currency values are character fields. The values in the table for display, is properly right aligned

  • Which is Better in Performancewise?

    Hi Guys,            In context of ABAP HR,  Which Technique is better for selecting Data (Performance wise)? 1) Use of Provide / EndProvide OR 2) Use of Macro like rp_provide_from_last Kindly reply with suitable reason. Thanks, Ravin

  • Report on Material document by Material Group

    Hi Apart from MB51 is there any report for Material document list by one of the selection criteria as Material Group Its urgent Please Regards Amuthan M

  • Output determination for inventory management

    hi everybody,                  i have gone through total configuration of output determination of invetory management and suceeded in getting printout of GR but the problem is when we post gr in migo with movement type 101 it is no capturing output t

  • Error Bars are essential on Graphs -- how do we make them animate?

    I give a lot of talks with data, and have to have error bars. Is there anyway to animate data and show error bars? The animated graphs are very sexy but without error bars i can't use them ;(