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Apple 2022 MacBook Pro M2 Max

World’s fastest laptop, beats nearly all desktops..

Apple 2021 MacBook Pro M1 Max

Trouncing Intel-based laptops and desktops alike..

Apple iMac 5K (October 2020)

Rocking fast iMac with 8 cores and up to 128GB..

Apple iMac 5K (March 2019)

Rocking fast iMac with 8 cores and up to 128GB..

Apple Mac mini (November 2018)

True desktop-class performance..

Apple Mac Pro (December 2019)

Workhorse desktop tower..

Apple MacBook Pro Retina 16-inch (October 2019)

Desktop Class Performance, memory, SSD..

Apple MacBook Pro Retina (July 2018)

Vastly improved performance over 2017 model, 6 CPU Cores..

Apple 12-Inch MacBook (2016)

An iPad-sized laptop, refreshed..


Protecting your data from drive failures, theft, fire, flood, and dinosaurs..


How to utilize cloning for backup and other chores..

Understanding Storage and Hard Drives

How to erase and partition drives..

Using Apple Time Machine for Backup

How to use Apple Time Machine for Data Safety.


Various types of RAID setups..

Data Safety with RAID-1 Mirror

Protect your data with a fault-tolerant RAID-1 Mirror..

About Using Software RAID

Reasons for using software RAID, making the choice of RAID type, etc..

Software RAID with SoftRAID

Making software RAID volumes..

Promise Pegasus J4 Thunderbolt 4-Drive Enclosure

SSDs or hard drives for fast single-drive or RAID volumes in a portable enclosure..

Thunderbolt peripherals

Reviews of Thunderbolt products..

OWC Mercury Elite Pro Dock

Two-Drive Hardware RAID plus USB ports, SD slot, video, gigabit.

OWC ThunderBay 8

Eight bay storage solution with RAID-0/1/4/5/10 or non-RAID..

OWC Thunderbay FLEX 8

Eight bays for HDD, SSD plus PCIe Card and Ports.

OWC Thunderbay IV / 4 Thunderbolt Enclosure

High performance with hard drives or SSDs..

OWC Mercury Elite Pro Dual Thunderbolt / USB3

Dual-drive Thunderbolt + USB3 user-selectable RAID..

CalDigit T3 3-Drive Thunderbolt Enclosure

Three drives in a high-grade enclosure..

Drobo 5D with Thunderbolt or USB3

RAID reliability in easy to configure 5-drive enclosure for full-size hard drives..

Apple 2017 iMac Pro

High-end computing moves to the iMac form factor..

Apple 2015 iMac 5K

5K Display, blazingly fast SSD.

Understanding Thunderbolt and USB3 Performance with the 2013 Mac Pro

Using the right ports is critical to performance..

Transitioning to the 2013 Mac Pro

Peripherals and add-ons forexisting hardware..

How To Guides

How to perform useful tasks and upgrades..

Setting Up Your Mac

Suggestions for setting up your Mac for performance and data safety..

Digital Camera Related

Camera cards and readers..

Upgrading Your Mac

When and Why to Upgrade Your Mac..

Command Line Time Savers

Useful tasks at the command line in Terminal..

Optimizing Photoshop CS4 Performance

How to configure a Mac to maximize Photoshop CS3/CS4 performance..

Choosing and Configuring a Mac

An in-depth look at how to find the right Mac setup for you.

How to Buy / What to Buy

Nuts and bolts of buying a Mac, and recommended extras..

Mac OS X 10.6 Snow Leopard

Special Report: Upgrade Now or Wait?.

Fast and Reliable Hardware RAID

How fast and reliable can RAID-0, RAID-5 and RAID-6 go using an 8-drive mini-SAS box and a hardware RAID card?.

Apple Mac Pro Westmere 4/6/8/12-Core (Aug 2010)

Choosing among 4/6/8/12 cores, and is 2010 Mac Pro faster or better than 2009 model?.

Optimizing Mac Application Performance

Optimizing specific application performance..

OWC Mercury Accelsior PCIe RAID SSD

Ultra-fast solid state storage with hardware RAID for a Mac Pro in a PCIe slot..

OWC Mercury Electra 960GB 3G SSD

Huge capacity in a speedy SATA SSD..

Solid State Drives, Various

SSDs and thumb drives..

OWC SSDs, Various

Various SATA and USB SSDs..

Solid State Drives (SSD)

Choosing and using solid state drives..

Apple Mac Mini (Late 2012)

Apple’s first USB3 MacMini..

Apple 12-Inch MacBook (2015)

An iPad-sized laptop..

Apple MacBook Pro 15-inch Quad-Core (June 2012)

Apple’s 2012 MacBook Pro (non Retina)..

OWC Portable Dual-Drive RAID-0 or RAID-1 Mini Enclosures

Dual-drive externals for travel or compact backup..

Drives and Expansion and Various

Reviews of various hardware and software..

Mac Pro Early 2009 (Nehalem)

Configuring and optimizing..

Desktop Hard Drives

Performance and use..

HGST 8TB Ultrastar He8

Outstanding high-capacity enterprise hard drive..

ioSafe N2 Fireproof and Waterproof NAS

Network attached storage with fire and flood protection..

Core Rot at Apple

The worrisome decline of OS X quality and integrity..

Older storage interfaces

Modern Macs use USB3 and Thunderbolt..

Fusion How To

Using Apple’s Fusion drive technology..

Blog posts


2023-05-16 Reader Question: APFS or HFS for Hard Drive Backup?

2023-04-12 Data Loss by Failing To Backup

2023-03-30 IntegrityChecker (icj) Java Release 3.0 fc20

2023-02-13 Dirty Secrets of Thunderbolt Daisy Chaining: Never Reliable, Probably Never Will Be, Kernel Panics with Sustained I/O eg Backups


2022-12-03 OWC Deals: Load up on HUGE Storage, Max-Out Memory, etc

2022-08-29 Hard Drives: When a More Expensive Drive Costs a Lot Less

2022-05-07 Validating Backup Volumes is Essential, Right-After and Later Too!

2022-02-22 Apple iCloud Might Eject Your Files, Eliminating them From Your Backups


2021-12-16 Why Use IntegrityChecker Java for Data Integrity?

2021-11-26 OWC Mercury Pro U.2 Dual for up to 16TB U.2 SSD, or 64TB NVMe M.2

2021-11-23 OWC Announces miniStack STX World’s First Thunderbolt™ 4 Certified Storage and Hub Expansion Solution

2021-10-19 Storage and Accessories by OWC Apple 14/16-inch MacBook Pros M1 Pro/M1 Max

2021-10-18 Apple 14/16-inch MacBook Pros Here, with M1 Max or M1Pro CPU: What You Need to Know

2021-10-12 Portable SSDs for Travel Storage and Especially Backup

2021-10-08 IntegrityChecker Java: Simultaneous Data Verification on any Number of Hard Drives or SSDs

2021-10-04 macOS Big Sur Locks Me Out of my 2019 Mac Pro after Kernel Panic, Repudiating my Login Password

2021-10-04 Checking for Data Corruption after macOS Hoses Your System

2021-07-30 Separate Your Data from System and Applications on the Boot Drive Using an APFS Volume

2021-07-30 Backing up With Carbon Copy Cloner For Years Now, Latest Update As Good As Ever in Functionality, but Confusing Visuals

2021-07-22 OWC Introduces Envoy Pro SX Thunderbolt Bus-Powered Portable SSD

2021-03-07 HOT! the OWC Thunderbolt Hub Delivers Unprecedented Rock-Solid Thunderbolt, a mini review

2021-01-29 Installing an 18TB Hard Drive into the OWC Mercury Elite Pro USB 3.2 Enclosure

2021-01-29 How-To: Formatting a new Hard Drive or SSD in Apple Disk Utility

2021-01-12 Backing-up All Your Stuff: an 18TB Hard Drive installed in OWC Mercury Elite Pro USB 3.2 Enclosure


2020-12-28 Some of my Favorite Stuff From OWC

2020-11-27 Apple Spyware in macOS Big Sur Cannot be Disabled (“ Your Computer Isn’t Yours”)

2020-10-01 OWC Introduces OWC Mercury Pro LTO Tape Archiving Solution

2020-02-01 macOS Catalina 10.15.3 Disables all of my Samsung T5 Backup Drives


2019-12-28 Life in Thunderbolt 3 Hell: a Single Thunderbolt 3 Bus Plus Thunderbolt Cabling/Ports Are a Severe Headache

2019-12-28 Detecting Data Corruption Caused by Bit Rot or Bad Drives or Software Bugs with diglloydTools IntegrityChecker

2019-12-18 Validating Data Transfer/Copy Before Deleting the Source/Original Data: diglloydTools IntegrityChecker

2019-11-17 Why I Might Have to Abandon the 2019 iMac 5K

2019-08-30 How macOS Can Cause Data Loss: Spotlight Chooses on Backup (Clone) Volumes, Which User then Works on... Later Wiped Out by Backup

2019-05-27 Detecting Corruption / Validating Data Integrity Over Time and Across Drives and Backup/Restore

2019-05-07 Switched to macOS Mojave, out of Necessity with 2019 iMac 5K

2019-05-02 Upgraded my 2015 MacBook Pro Retina Apple Flash Drive to the 2TB OWC Aura Pro X2 SSD

2019-02-25 Better Progress Indicator in Carbon Copy Cloner

2019-02-09 Apple 2017 iMac 5K is a Terrific Machine, but Too Often It Impedes My Work

2019-02-07 Banishing the Drone of Spinning Hard Drives: and Fans: Moving to 8TB OWC Thunderblade SSD

2019-01-27 How to Fix Damaged File Dates (RAW or JPEG or movies) with exiftool


2018-12-25 Data Integrity Over Time, and with OS Changes

2018-12-11 Using Apple FileVault for Data Security

2018-11-18 Beware of Phishing Based on Fear of Secret Porn Behavior and Real Password Compromise

2018-09-29 Data Integrity Over Time, and with OS Changes

2018-09-03 Video Presentation: Configuring the 2018 MacBook Pro as as Desktop Replacement

2018-04-28 OWC Thunderblade SSD Shipping in All Capacities up to 8TB — Ideal for Video Production and Capture. and/or Silent and High Capacity Photoshop Workflow

2018-02-24 What Can an iMac Pro 18 Core Do? Destroy Its Boot Volume Rendering Itself Unbootable

2018-02-14 What Can an iMac Pro 18 Core Do? Coming Next Week to Find Out


2017-12-18 4-Core CPUs do not Leave Much Grunt for Other Tasks: Cloning Can Use all Available CPUs in a 4-Core Mac

2017-11-27 Tips on Using Apple Time Machine, Tips on Backup

2017-11-27 Time Machine and APFS: Local Backups

2017-11-27 HOT! OWC Envoy Pro EX 2TB Thunderbolt 3 SSD Now In Stock

2017-11-23 Why I Probably Will Never Buy a Mac Pro Again

2017-09-17 macOS High Sierra: Apple’s Technote on APFS is Both Confusing and Possibly Incorrect

2017-09-08 My Sprinter Photography Adventure Van Project: Which Mac?

2017-07-29 My Sprinter Photography Adventure Van Project: Which Mac? Experience Report / Proving it Out? MacBook Pro = Not so good for big jobs

2017-07-01 Apple Core Rot Strikes Again: Time Machine Wipes Out Other Backups and Fails to Restore Properly

2017-06-13 Apple Photos: Bad Idea + Downloading Images from iPhone/iPad/Other Devices using Apple Preview

2017-05-15 On Ransomware

2017-05-14 Is Apple’s Time Machine Broken Yet Again

2017-01-29 Apple’s Time Machine Obliterates my Data When It is Most Needed (Restore)


2016-11-02 2016 MacBook Pro: Firewire 800 Compatibility

2016-11-01 2016 MacBook Pro: What Options I Ordered, and Why

2016-10-27 macOS Sierra 10.12.1: Data Loss + Breaking Backup Protocols is Now a Feature?

2016-08-31 Viewing and Backing up Files from a Digital Camera on a Trip

2016-08-30 iPhone Software Update Failure: ‘“Not enough free space is available on this computer” (8.81TB not enough space for 0.128 TB iPhone)

2016-07-19 Reader Question: Carbon Copy Cloner and File Integrity

2016-05-31 What a Bad Hard Drive Fails Like when Running diglloydTools 'fill-volume'

2016-05-26 The Drive I Use for Backup in the Field

2016-04-05 Thunderbolt on OS X: Spontaneous Drive Disconnect

2016-03-27 What a Bad Hard Drive Fails Like when Running diglloydTools 'fill-volume'

2016-03-07 OS X Malware: Ransomware Encrypts Data, Demands Payment to Recover

2016-02-03 OS X El Capitan Finder: “The operation can’t be completed because one or more required items can’t be found. (Error Code-43)”

2016-01-12 Price Drop on 4TB Internal SSD for 2013 Mac Pro, 6TB Hard Drives, 1TB SSDs, USB3 Hub

2016-01-09 Reader Question: Backup Drive for a RAID


2015-12-27 Archiving Images and Data

2015-12-20 $1799 ($500 off) for Excellent MacBook Pro 15", Recommended Peripherals for Storage, Backup

2015-12-07 Reconfiguring Storage to use 8TB Drives, Data Integrity Critical

2015-12-06 Time Machine does not show all the items that are excluded!

2015-12-04 Best Starter Camera Deal?

2015-11-18 Cool New Product: OWC Drive Dock Takes 2 Bare Drives (HDD or SSD) and is Thunderbolt 2!

2015-11-12 One of the Most Confusing Finder Preferences

2015-11-11 Clone Backups on Steroids

2015-11-09 Reader Comment: “DiskTester is awesome software as it detects irregularities before they become relevant”

2015-10-15 Reader Question: How to Approach El Capitan

2015-10-15 OS X El Capitan Breaks Time Machine

2015-09-02 OWC Thunderbay can be Partitioned into Multiple RAID-5 Volumes

2015-08-16 For Nearly Two Years, the OWC Envoy Pro EX Delivers the Portability and Backup Speed For Travel

2015-08-16 Apple ID Account Hassles Continue

2015-06-18 Mini Review: 2015 Apple MacBook

2015-06-07 Big Capacity for your Digital Camera: Lexar Professional 128GB Cards

2015-05-13 Savings on Various Macs (limited time)

2015-05-03 Detecting Corruption / Validating Data Integrity Over Time and Across Drives and Backup/Restore

2015-05-01 2013 Mac Pro 6-core for $3175

2015-04-02 Time Machine Running Slow and Low on Space? Exclude Older Items.

2015-03-30 Hard Drives: Odds of Failure with Time, When to Upgrade/Replace

2015-03-26 Hard Drives: Staying the Course with Higher Performance and up to 8TB Capacity

2015-03-25 Which Mac to Get? How to Backup? Planning for Growth.

2015-02-27 Which Mac to Get? How to Backup? Planning for Growth.

2015-02-22 An Example of When More CPU Cores Mean Responsive vs Sluggish

2015-02-17 My Mac Consulting Can Save You Money and Protect Your Data

2015-01-17 What’s the Most Important Aspect of Your Mac?

2015-01-09 Detecting Corruption / Validating Data Integrity Over Time and Across Drives and Backup/Restore


2014-11-11 Configuring and Backing Up High Capacity Multi-Drive Storage

2014-08-05 OWC Offers Thunderbay in RAID-5 Edition

2014-07-30 Just Did a Big Drive Reconfig: How Did I Verify Data Integrity?

2014-06-11 Detecting Corruption / Validating Data Integrity Over Time and Across Drives and Backup/Restore

2014-06-03 Awesome: SoftRAID with RAID-5 rebuild

2014-05-17 Safely Recording and Storing Video Footage: a Few Pointers

2014-03-14 2013 Mac Pro: Which one to Choose, How to Store Image Files, Backup, etc

2014-03-08 Housing Data Safely: Dual OWC Thunderbay 4-Bay Units for Performance, Capacity, Redundancy, Backup

2014-02-05 “You Saved My Bacon” (Always keep 3 backups)

2014-01-20 2013 Mac Pro: Workflow, Backup Advice

2014-01-11 Partition an SSD / Flash Drive or Not?

2014-01-05 How to Clone a Volume, and Cloning as a Backup Strategy

2014-01-05 Dangerous (to your data) Misconceptions About Backup

2014-01-04 Why Use RAID? Is RAID for Backup? What is Fault Tolerance

2014-01-01 How Fast is the Internal PCIe SSD in the MacBook Pro Retina 'Crystal Well'?


2013-12-17 Gift Ideas for the Computer User

2013-10-07 Are Your Backup Drives Still Functional? Are Your Files Subtly Damaged?

2013-09-17 ioSafe N2: A Cornucopia of Functionality

2013-09-16 ioSafe N2 Fireproof and Waterproof Dual-Drive NAS

2013-07-12 How to Safely Transfer Data or Verify Backups

2013-07-05 Promise Pegasus J4 Thunderbolt: Recommended High Performance Config *with* Built-in Backup

2013-06-29 How to Safely Transfer Data or Verify Backups

2013-06-12 2013 Apple Mac Pro: Thoughts on a Switchover from Existing Tower

2013-06-11 Detecting Corruption / Validating Data Integrity Over Time and Across Drives and Backup/Restore

2013-04-14 A Robust Backup Process

2013-04-05 One Backup (only) is a Disaster Waiting to Happen

2013-03-26 How to Safely Transfer Data or Verify Backups

2013-02-21 Apple 'Time Machine' and Backup

2013-02-18 How to Safely Transfer Data or Verify Backups


2012-12-15 What’s Most Important for Your Mac?

2012-12-04 Time Machine Bug — Is Your Data Being Backed Up?

2012-11-04 MacMini — Turnkey Upgrade with 16GB and Fast 6G SSD

2012-11-03 MacMini — Hard Drive vs SSD

2012-10-23 Analysis of the Oct 2012 MacMini

2012-10-08 How to Safely Transfer Data or Verify Backups

2012-09-05 A Fast and Silent Internal 960GB Clone Volume in my Mac Pro: OWC’s Mercury Electra Max SSD

2012-08-07 Apple’s Time Machine Can Silently Exclude Key Volumes from Backup

2012-08-07 A Fast and Silent Internal 960GB Clone Volume in my Mac Pro

2012-07-11 An Internal 960GB Clone Backup Volume

2012-06-21 OWC Specs Drive Mechanisms in its Externals

2012-06-12 MacBook Pro Retina vs MacBook Pro 17" (or 13" or 15")

2012-03-19 It’s About Time for a New Mac Pro

2012-02-16 Hitachi Coolspin 4TB Hard Drive


2011-12-23 An SSD-based MPG Pro Workstation Design with Fault-tolerant Time Machine Backup

2011-12-20 Stocking Stuffers and Gifts

2011-10-09 Backup and Backup Drives for Photographers

2011-10-05 My Mac Consulting Can Save You Money and Protect Your Data

2011-08-13 My Killer-fast Mac Pro System Based on Solid State Drives (SSD)

2011-08-09 Apple Lion Recovery Disk Assistant — But There is a BETTER WAY

2011-08-08 My Consulting Services Might Save You Time and Money and Also Get You the Right System for Your Needs

2011-06-07 The All-SSD Mac Pro

2011-04-01 Disable Spotlight for Faster Backups

2011-03-28 How to Safely Transfer Data or Verify Backups

2011-03-15 Backing Up Your Mac: Keep It Safe, and No, Time Machine is NOT Enough

2011-03-13 Making a RAID-1 Mirror with SoftRAID 4

2011-01-05 SPECIAL DEAL on a 2009 Mac Pro 2.93GHz as an MPG Pro Workstation

2011-01-04 Why Is My Backup Taking so #$*#$#*$* Long?


2010-12-29 Two Compact and Portable Choices for Mirrored or Striped External Storage

2010-09-29 How to Safely Transfer Data or Verify Backups — User Comment

2010-09-21 How to Safely Transfer Data or Verify Backups

2010-07-28 Pricing and Valuing the iMac Against the Mac Pro

2010-07-17 Carbon Copy Cloner 3.3.3 Cautionary Advice When Cloning to a Larger Volume

2010-07-08 NewerTech StoraDrive™ for Bare Hard Drive Storage

2010-06-25 Converting to a Larger Time Machine volume, and a Faster One Too!

2010-06-15 Cost Effective Reliable Backup and Storage

2010-05-25 Using Apple Time Machine for Backup

2010-03-31 OWC and DIGLLOYD offer ultra-high-performance MPG Pro Workstations | Terms of Use | PRIVACY POLICY
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